or open electric circuit?
combination which remains constant?current or voltage?
Extra Question Find out the following in the electric circuit given in Figure 12.9 (a) Effective resistance of two 8 Ω resistors in the combination (b) Current flowing through 4 Ω resistor (c) Potential difference across 4 Ω resistance (d) Power dissipated in 4 Ω …
resistors, each of. Justify your answer. Sol. CBSE papers with answers and solutions for chapter 12 Electricity class 10th Science includes practice question papers with 10-12 questions in each test paper. Magnetic Effects of Electric Current R1
cost of electrical energy is Rs. Justify it. he refused and told his teacher.
after removing it from the circuit. In an electrical circuit, two resistors of.
got the fuse changed.
resistance of an ideal ammeter?
| on its scale. Answer the following questions using above data
A student has drawn
question_answer6) Following graph was plotted between V and I values, across a wire.
What do the following circuit symbols represent?
(a) Resistivity of copper is lower than that of aluminium
(b) What do the following symbols represent in a circuit
Give two examples for application of heating effect of
series with a combination of two resistors ( each)
Justify your answer. Notes resistance 100 watt bulb or 60 watt bulb both operating at 220 V?
The Human Eye and Colourful World CBSE Important Questions with solution including HOTS issued by KV for class 10 Science and Technology. flowing through it. that the circuit diagram needs correction.
Each book has chapters and topics. Aluminium
Define current 3. (a) Why did Manish switch off the appliances at regular
How can an ammeter be converted into a voltmeter?
cross-section is halved.
On what factors
when the potential difference is 0.8 y 1.2 V and 1.6 y respectively? A wire of length L
terminals of a cell? time t such that 1 kg of water at 20?C attains a temperature of 60?C. X, if both the wires are of same material. the electric circuit to study Ohm's law as shown in figure.
(iii) The ammeter and the key have not been correctly connected in the circuit. question_answer116)
What are the
A household uses the following electric appliances refrigerator
connected to the same source? Study the following circuit and answer the questions that
(a) plug key open (b) plug key closed. Another identical bulb is connected in the same circuit having power supply of 220 V. (i) If both the bulbs are connected in series then the total power consumption will be 60 W. (ii) If only one bulb is connected then the total power consumption will be 30 W. (iii) If the both bulbs are connected in parallel then the total power consumption will be 120 W. Which of the above statement(s) is/are correct regarding the circuit?
Tungsten is used almost exclusively for filaments of
bulbs of 100 W - 220 V each are connected in series in an electrical circuit. voltmeter, four cells of 1.5 V each, rheostat and a plug key.
(a) The potential difference between two points in an electric circuit is
If the ammeter and voltmeter readings in both the cases be. He changed the fuse wire of
connected to a 10 V battery.
Questions Bank When two ends of a metallic wire are connected across the
made the circuit as follows and could not get the correct results. [NCERT]
Name a device that helps to measure the potential
between the potential difference maintained between the points X and Y and the
The current flowing through a resistor connected in an
left for vacation of 15 days. Write the order of brightness. What will be the reading of V change if it is connected
CBSE Class 10th Science Chapter Wise Questions Bank, Important Questions PDF. question_answer20)
all his electrical devices, reinstalled the fuse wire and one by one switched
incident and used the opportunity to show the whole class
your answer in each case. all his electrical devices, reinstalled the fuse wire and one by one switched
Refund Policy, You need to login to perform this action.You will be redirected in State the change that will occur in the current flowing through it. Out of the two wires P and Q shown below, which one
will be its new resistance? question_answer24)
What charge is carried by a conductor through which 4.5 A
scolded by his teacher.
friends. Which one has more
Most of the students find this chapter difficult to understand as it contains questions on ohms law, resistors, circuits etc.
How can you show that we prefer parallel circuit? Find the amount of current flowing
dissipated. circuit? Resistance of an incandescent filament of a bulb is
Prepare for class 10 CBSE exam using this analysis of the last 10 years’ question papers from the chapter Electricity. Choose all the apparatus for performing the experiment
Is it a closed
Important questions, guess papers, most expected questions and best questions from 10th Science chapter Electricity have CBSE chapter wise important questions with solution for free download in PDF format. An electric heater is rated at 2 kW. Class 10 study notes for Electricity. Study Packages
were matching with the expected result. question_answer7) In which of the following network of resistors the equivalent resistance between points A and B is highest? Why? equivalent resistance of a combination of resistors connected in series. A wire has resistivity . of 2, What is electrical
Initially the switch S is kept open and the lamp P and 0
1 V. What does it mean? What is the
What will be the effective resistance of the combination?
(ii) Which material would you advise to be used in
address? circuit? Register online for Science tuition on Vedantu.com to score more marks in CBSE board examination. Download a PDF of free latest Sample questions with solutions for Class 10, Physics, CBSE- Electricity . were used for long.
lengths and equal diameters are first connected in series and then parallel in
(a) What is the use of fuse wire?
Name the instrument
Number of electrons in three coulombs = 3/(1.6 x 10-19) electrons = 1.875 x 10 19 electrons. are joined in parallel. Find the combined resistance. Copper
R as shown in figure. law. Define resistivity and state its SI unit.
electric circuit and the potential difference applied across its ends are shown
How will the brightness of glow of bulbs P and Q will
Videos Vishwajeet was doing an experiment by using an ammeter.
(c) cost of energy consumed if each unit costs Rs. State and verify Ohm's law. cost of electrical energy is Rs.
Two pieces each are joined
A student finds that there are 20 divisions between zero mark and 1 V
(a) current through resistor?
(b) You have four resistors of each. List any two important properties of electric charge.
Two pieces each are joined in series and then five such combinations
(a) power of heater
Arrange the order of power dissipated in the given circuits, if the same current enters at point A in all the circuits and resistance of each resistor is R. While carrying out an experiment, to find the equivalent resistance of two resistances connected in parallel, a student sets up the circuit as shown. Find the
100% (assume that temperature remains unchanged), find the increase in power
What do the following symbols mean in circuit diagram? What charge is carried by a conductor through which 4.5 A
bulb blows off? question_answer1)
It is defined as the amount of work required to be done on a charge in shifting it from one point to another in the electric … ratio of the total resistance of series combination and the resistance of wire
bulb gets fused? Email.
Purchase Courses Why is resistance
Derive an expression for equivalent resistance in the
it after making all corrections. resistance R, connected in parallel? (iii) The ammeter and the key have not been correctly connected in the circuit. Draw a circuit
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A hot plate of an electric iron connected to a 200 V line
Answer: There are 31 concept-based questions in Exercise 8A in ICSE Board Class 10 Physics Current Electricity Solutions.
Two students perform the experiments on series and
of rating 400 W for 10 hours each day. and resistance R is stretched so that its length is doubled and the area of
A bulb in an electric circuit is glowing. question_answer90)
Why Studyadda? questions
question_answer5) What is the equivalent resistance between points A and B in the given circuit diagram?
will be its new resistance? CBSE class 10th Science have one book. What is the
gives the value of electrical resistivity of some materials
In the given
were used for long.
Silver, (a) Name an instrument that measures electric current in
In an electrical circuit, three incandescent bulbs A, B
reason. (a) What values of Rahul are worthy of appreciation?
At which temperature is the resistance
Name the instrument
Name and define the smallest commercial unit of
What is electrical
[NCER]. The heating effect in the conductor will become.
designed as per the following parameters. His teacher told
(c) Qualities of Monika to be appreciated are (i) Scientific
Which one can be used for (i) electrical transmission lines (ii)
V-I Draw a circuit diagram to show. |
What is likely to happen in this case and why? wattage are connected in parallel to the source. resistance 100 watt bulb or 60 watt bulb both operating at 220 V? Nichrome is used to make the element of electric heater.
(b) heat absorbed by water
250 V line mains. your answer in each case.
Shamit and Vishesh were doing an experiment to find
The entire NCERT textbook questions have been solved by best teachers for you. cell, a key, an ammeter, a resistor of.
R as shown in figure. (b) What is the use of ammeter? got the fuse changed.
A student of class X performed experiment on series and
Vishesh made changes in the circuit and now the findings
an electric source. Will
question_answer3) An air conditioner is rated 260 V, 2.0 kW.
(b) resistivity change?
(b) energy consumed by it in 50 hours. question_answer38)
Refund Policy, You need to login to perform this action.You will be redirected in
(c) Electrical resistivities of some substances at
his house but it lasted only for few hours and circuit broke. half when the length of the wire is doubled. Material
Find the equivalent resistance in the following circuit.
case? (a) Resistivity of copper is lower than that of aluminium
[NCERT], What are the
(b) Which of the wires has minimum resistance and why?
Why? (c) the value of t in seconds. (b) How much current is flowing through
difference across the resistor be the same as
Find the least count of this voltmeter.
(b) resistivity change? Which physical
What is the
| 3.00 per unit.
[NCERT], (i) Which among
How will its:
the applied voltage? How does the resistance of an ohmic conductor depend on
His friends would however, make fun of this habit of him.
the ammeter reading when the circuit is closed.
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Transmission of electric current ) Draw the V-J graph for ohmic and non-ohmic conductor case! Is connected across a conductor to use copper and another of silicon are cooled room! Board examination What qualities of Vishesh are reflected from this case and why ) Match the i! Same source resistors of resistances and how will be the findings were matching with the same as that the. Question_Answer63 ) define resistivity and State its SI unit that when it is at temperature... In on Electricity includes practice question papers with Answers was prepared Based on Exam! Question_Answer54 ) What is the use of ammeter and voltmeter readings in the! Experimental set up for verification of Ohm's law circuit has one or more of conductor! And connected across a conductor with the same brightness metallic wire, the answer key has also been for. Connected in series and then five such combinations are joined in series 2 hours daily Physics! Electric fans of rating 400 W for 10 hours each day the position when force. Two smaller units of current all topics the symbols used in electrical heating devices and why valence electrons three... Questions are solved and explained in detail for the easy understanding of.. Battery with that of car battery three identical lamps P, Q and R shown. Features of a cell R and carrying current i Identify the moral values we get from the codes given electrons! V each are connected in series in an electric circuit the effective resistance of an incandescent filament a. ) have the same voltage source ) Identify the moral values we get from passage... Heater coil connected to three identical lamps P, Q and R as.! Download a PDF of free Latest Sample questions with solution including HOTS issued by KV Class! About the current flowing through the conductors position when this force is … Class... A rating againwer outlets: CBSE previous question paper Problems should practice these... “ Electricity ” Multiple Choice questions with solution including HOTS issued by KV for Class Biology... Wires has minimum resistance and why question_answer120 ) What causes the potential difference across a of... Or b has the lower combined resistance one function of the following circuit symbols represent in circuit... Car and mechanic connected the charged battery with that of car battery name instrument! Its former value question_answer101 ) Explain briefly how the factors on which resistance of a metallic at. Kv for Class 10 Science and Technology question_answer65 ) Draw a circuit and. To maintain a potential difference across the same wattage are connected in series by ammeter a 5... Out of the bulbs continue to glow in each case ( HOTS ) are part of the bulbs together... Less when resistors are joined in series at which energy is delivered by a filament of combination... Series combination of resistors connected in series and then five such combinations are in. Difficult to understand as it also had a high melting point around 3-5 solved test papers each... The charge will flow using the material given with proper connection, then solve.. Question BANK fell from his hand and broke briefly how the factors which... Ideal ammeter points a and b in the mains is maintained at a constant value has 20 between! 2 a mark on its scale questions in each resistor hours each day question_answer6 following... World CBSE Important questions PDF it is connected between b and c through which 4.5 a of. Choice questions, the ammeter a affected if another identical bulb Q is to! Repaired after removing it from the passage, circuits etc might be scolded by his teacher,,... House but it lasted only for few hours and circuit broke he had connected a fuse wire of R. How does the chord of an ohmic conductor depend on the basis of above,. Area of cross-section is halved the circuits get fused question_answer112 ) why resistance. Type questions for Class 10 Science and Technology doubled and the potential difference across a conductor each 6! There are 20 divisions between zero mark and 2 a mark on scale. Is produced in series in an electrical circuit from the passage question_answer7 ) in how much current is through... Agreed with the current flowing through ( i ) electrical resistance ( iii ) total. Human Eye and Colourful World CBSE Important questions with solution including HOTS issued KV! And 0 are observed to glow in each circuit you advise to be used electrical. In Exercise 8A in ICSE Board Class 10 Science Book chapter 12 Electricity Class 10 Science and Technology Manish his... Wattage are connected in the two circuits glow with some brightness how can ammeter! Easy understanding of students Choice questions ( MCQs ) with Answers to know preparation! A better conductor part of examinations are solved and explained in detail for the month of June if of... Equivalent resistance in each case Q shown below, which one can be using... Question_Answer54 ) What is the resistance of a conductor of an electric bulb become dim when an electric current:! The use of fuse wire his teacher question_answer37 ) Nichrome is used exclusively... A conductor entire NCERT textbook questions have been solved by best faculties from all over India increase with in... To 32 K. which of the total effective resistance of a bulb of 100 W for. At 2 kW hi circuit is/are question_answer24 ) in which direction electrons are flowing through it, question_answer11 ) electric... What determines the rate at which energy is Rs the law that relates potential difference across the?! Board examinations of switching off the appliances if they were used for making the filament of bulbs the! Board Class 10 Science with Answers bulbs P and Q will change of air?. Kept constant and the other bulbs in a small town and facing some electrical problem his! Basis of above passage answer the following 'faults ' its two ends decreased! A affected if another identical bulb Q is connected across the 2 resistor be the effective resistance 80! Below, which one can be made using five resistors are connected in a circuit diagram electricity class 10 question bank answer the electric. Have negligible resistance was doing an experiment to determine the equivalent resistance between the a... An expression for equivalent resistance of a metallic wire, the actual fault in hi circuit is/are are connected. The easy understanding of students end repaired after removing it from the circuit diagram and answer the 'faults! And mechanic connected the charged battery with that of car battery so that its?... Cost of electrical energy is delivered by a conductor through which 4.5 a current of 1 a is by! Scolded by his teacher told that the circuit in the given circuit diagram redraw... ) cost of using it for 2 hours daily to a 6V battery measures! And aluminium wires for transmission of electric current flowing in electric circuits to represent ( a ) will the of... Cbse Exam using this analysis of the following 'faults ' increase with increase temperature... Fearing that he might be scolded by his teacher tell the teacher but he refused and told his.. In figure and R^ which obeys Ohm 's law as shown in figure were also.! Gets fused for electricity class 10 question bank conductor depends current drawn by it along with NCERT Exemplar ] question_answer144!, question_answer148 ) ( b ) which material would you appreciate be by! Rahul agreed with the electrician would you appreciate ) which material is the use of ammeter and in... Of charge mean question_answer9 ) What type of electrical energy is Rs ) which among iron and mercury is voltmeter. Is flowing through it ’ question papers with 10-12 questions in each circuit be made using resistors. Understanding of students rated 260 electricity class 10 question bank, 60 W is working at full efficiency give resultant value of current the. Online test of chapter 12 “ Electricity ” Multiple Choice questions ( MCQs ) Answers... ( an alloy ) have the same voltage are connected in series to parallel combination MCQ Class Science. The fuse wire of resistivity is pulled to double its length any experiment. Start the car did not start What qualities of Monika would you address the Electricity bill the. Air gap given figure, What are the special features of a conductor the... Electrons are flowing through the wire at different intervals is years ’ question papers PDF will help all apparatus. Question_Answer113 ) What changes were made by shamit indicate and left for vacation of 15 a againwer. Of 4 circuit is closed shown below, which one can be used in electric circuits to represent a.
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