Home
Class 12
PHYSICS
When the current changes from +2A to -2A...

When the current changes from `+2A` to `-2A` in `0.05s`, and emf of `8V` is induced in a coil. The coefficient of self-induction of the coil is

A

0.4H

B

0.8H

C

0.1H

D

0.2H

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise Example|39 Videos
  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise Exercise (Long Answer Questions)|1 Videos
  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE (MOTIONAL EMF)|4 Videos
  • ELECTRIC FIELD AND POTENTIAL

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|26 Videos
  • ELECTROMAGNETIC WAVES

    AAKASH SERIES|Exercise EXERCISE -II|22 Videos

Similar Questions

Explore conceptually related problems

When the current in a coil charges from 2A to 4A in 0.5 s, emf of 8 volt is induced in the coil. The coefficient of self induction of the coil is -

When current flowing through one coil changes from 0 Amp to 15 Amp in 0.2s, an emf of 750 V is induced in an adjacent coil. Calculate the coefficient of mutual inductances of the two coils.

In a circular conducting coil, when current increases from 2A to 18A in 0.05 sec., the induced e.m.f. is 20V . The self-inductance of the coil is

When current flowing in a coil changes from 3A to 2A in one millisecond, 5 volt emf is induced in it. The self-inductance of the coil will be-

When current in a coil changes from 5 A to 2 A in 0.1 s, average voltage of 50 V is produced. The self - inductance of the coil is :

When current in a coil changes from 25 A to 12 A in 0.1 s , average voltage of 50 V is produced .The self inductance of the coil is

A varying current ina coils changes from 10 A to zero in 0.5 s .If the average emf induced in the coils is 220 V , the self- inductance of the coils is

The current decays from 5A to 2A in 0.01s in a coil. The emf induced in a coil nearby it is 30V. Calculate the mutual inductance of the coil.

An emf of 2 V is induced in a coil when current in it is changed from 0 A to 10 A in 0-40 sec. Find the coefficient of self-inductance of the coil.

In a coil current falls from 5 A to 0 A in 0.2 s. If an average emf of 150 V is induced, then the self inductance of the coil is