Home
Class 12
PHYSICS
The current in the primary coil of a pai...

The current in the primary coil of a pair of coils changes from 7 A to 3 A in 0.04 s. The mutual inductance between the two coils is 0.5 H. The induced emf in the secondary coil is -

A

50 V

B

76 V

C

100 V

D

220 V

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2022 TERM 1 SET 1

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-B|24 Videos

  • QUESTION PAPER 2022 TERM 1 SET 1

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-C|6 Videos

  • QUESTION PAPER 2022 SET - 5

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-C (CASE STUDY)|5 Videos

  • QUESTION PAPER 2022 TERM 1 SET 2

    XII BOARDS PREVIOUS YEAR|Exercise SECTION C|6 Videos

Similar Questions

Explore conceptually related problems

If the current in the primary circuit of a pair of coils changes from 5 A to 1 A in 0.02 s. Calculate (i) induced emf in the secondary coil if the mutal inductance between the two coills is 0.5 H and (ii) the change of flux per turn in the secondary ,if it has 200 turns .

If the current in the primary circuit of a pair of coils changes from 10 A to 0 in 0.1 s, calculate (i) the induced emf in the secondary if the mutual inductance between the two coils is 2 H and (ii) the change of flux per turn in the secondary if it has 500 turns.

Two circular coils are kept in vicinity of each other. The current in primary coil changes from 10 A to 6 A in 0.3 sec. Calculate the coefficient of mutual inductance of the pair of emf of 1V induced in secondary coil.

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

If the current in the primary coil is reduced from 3.0 ampere to zero in 0.001 second, the induced e.m.f in the secondary coil is 1500 volt. The mutual inductance of the two coils will be-

If the current 30A flowing in the primary coil is made zero in 0.1 sec. the emf induced in the secondary coil is 1.5 volt. The mutual inductance between the coil is

When the primary current in the spark-coil of a car changes from 4A to zero in 10muS , an emf of 40,000 V is induced in the secondary. The mutual inductance between the primary and the secondary windings of the spark-coil will be -

A varying current in a coil change from 10A to 0A in 0.5 sec . If the average emf induced in the coil is 220V , the self inductance of the coil is

With the decrease of current in the primary coil from 2 amperes to zero value in 0.01 s the emf generated in the secondary coil is 1000 volts. The mutual inductance of the two coils is

A current of 10A in the primary coil of a circuit is reduced to zero. If the coefficient of mutual inductance is 3 H and emf induced in the secondary coil is 30 kV, time taken for the change of current is