Electromagnetic Induction · Physics · BITSAT
MCQ (Single Correct Answer)
1
Inside a solenoid of radius 0.5 m , magnetic field is changing at a rate of $ 50 \times 10^{-6} \mathrm{~T} / \mathrm{s} $. Acceleration of an electron placed at a distance of 0.3 m from axis of solenoid will be
BITSAT 2024
2
Two coils A and B have a mutual inductance 0.001 H. The current changes in the first coil according to the equation $$i = {i_0}\sin \omega t$$, where i0 = 10A and $$\omega$$ = 10$$\pi$$ rads$$-$$1. The maximum value of emf in the second coil is
BITSAT 2021
3
Given that in a fluorescent lamp's choke, a reverse voltage of 120 V is generated as the choke's current changes steadily from 0.50 A to 0.20 A in a time frame of 0.030 ms. Calculate the self inductance of the choke in millihenrys (mH).
BITSAT 2020