A current `I = 10 sin (100pi t)` amp. Is passed in first coil, which induces a maximum e.m.f of `5pi` volt in second coil. The mutual inductance betwe

Question

A current `I = 10 sin (100pi t)` amp. Is passed in first coil, which induces a maximum e.m.f of `5pi` volt in second coil. The mutual inductance betwe

A current `I = 10 sin (100pi t)` amp. Is passed in first coil, which induces a maximum e.m.f of `5pi` volt in second coil. The mutual inductance between the coils is-
A. 10 mH
B. 15 mH
C. 25 mH
D. 5 mH

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

Two coils have a mutual inductance of 0.01 H. The current in the first coil changes according to equation, I = 5 sin 200`pi`t. The maximum value of em

2 Answers 4 Views

The coefficient of mutual inductance of two coils is 10 mH. IF the current flowing in one coil is 4A then the induced e.m.f in the second coil will be

2 Answers 5 Views

The current passing through a choke coil of inductance 4 Henry is decreasing at the rate of `3 amp//sec`. The e.m.f developed across the coil is

2 Answers 4 Views

Two coils have a mutual inductance of `5 xx 10^(-3) H`. The current changes in the first coil according to the euquation, `I_(1)=I_(0)sin omega t` whe

2 Answers 4 Views

Two coils A and B have mutual inductance `2xx10^(-2)` Henry if the current in he primary coil is i=5 sin `(10pit)` then the maximum value of emf induc

2 Answers 4 Views

If the rate of change of current is 1A per second in one coil induces an emf of 2 V in the neighbouring coil, the mutual inductance of two coils is

2 Answers 4 Views

A current of 3A, in one coil, causes a flux in the second coil of 2000 turns to change by `6xx10^(-4)Wb` per turns of the secondary coil. The mutual i

2 Answers 7 Views

The mutual inductance of an induction coil is 5H . In the primary coil, the current reduces from 5 A to zero in `10^(-3)s` . What is the induced emf i

2 Answers 4 Views

Mutual inductance of two coils is 0.005H, ac in primary coil, `I=I_(0)sinomegat`, where `I_(0)=10A` and `omega=100pi` rad/s. What is the maximum emf i

2 Answers 4 Views

Define the term mutual inductance between the two coils. Obtain the expression for mutual inductance of a pair of long coaxial solenoids each of lengt

2 Answers 6 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
Let `I = I_(0) sin omegat`,
where `I_(0) = 10, omega = 100 pi`
then `epsilon = M(dl)/(dt)`
`= M(d)/(dt) I_(0) sin omegat`
`= M I_(0)omega cos omegat`
`therefore epsilon_("max") = MI_(0)omega`
`5pi = M xx 10 xx 100pi`
`M = 5mH`

4 views Answered 2023-02-05 15:29