Inductance, Class 12 Physics NCERT Solutions

1. There will be total 10 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. The unit of self inductance of a coil is

A

B

C

D

Your comments:

Question 1 of 10

2. Coefficient of mutual induction is the ratio of

Induced e.m.f in primary coil to the rate of change of current in secondary coil

Induced e.m.f in primary coil to the rate of change of current in primary coil

Induced e.m.f in seconday coil to the rate of change of current in primary coil

Induced e.m.f in seconday coil to the rate of change of current in secondary coil

Your comments:

Question 2 of 10

3. If a small plane circular coil with radius r with number of turns is placed at a distance Ã"€˜dÃ"€â„" from a straight vertical conductor in the same plane as of coil. What will be the mutual induction between the two?

A

B

C

D

Your comments:

Question 3 of 10

4. A solenoid coil has 10 turns per cm along its length and a cross sectional area of 10 cm². 100 turns of another wire are wound round the first solenoid coaxially. The two coils are electrically insulated from each other. The mutual inductance between the two coils is

0.13 mH

1.30 mH

0.013 mH

13.0 mH

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Question 4 of 10

5. If we take the analogy between mechanical motion and electric circuits, then inductance is analogous to

Torque

Force

Momentum

Moment of Inertia

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Question 5 of 10

6. Two pure inductors are connected in series, if their self inductance is L. Find the total inductance

0.5L

L

2L

0.2L

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Question 6 of 10

7. Suppose there are two coils of length 1m with 100 and 200 turns and area of cross section of 5 x 10^-3 m². Find the mutual inductance.

A

B

C

D

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Question 7 of 10

8. If the current in primary coil changes from 5 A to 2 A in 0.03 sec and the induced e.m.f. is 1000 volts, find the mutual induction

0.1 H

0.01 H

10 H

1 H

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Question 8 of 10

9. The mutual induction does not depend on which of the following factors

Number of turns

Shape of the two coils

Distance between two coils

Current through both the coils

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Question 9 of 10

10. Inductance is a _______ quantity. Its dimension is ________.

A

B

C

D

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Question 10 of 10

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