Mechanics
Units & Measurement and DimensionsMotionLaws of MotionCircular MotionWork, Energy and PowerCenter of Mass and CollisionRotational MotionGravitationSimple Harmonic MotionFluid MechanicsElasticityWavesHeat and ThermodynamicsOptics
Ray OpticsWave OpticsElectromagnetism
ElectrostaticsCurrent ElectricityCapacitorMoving Charges and MagnetismMagnetism and MatterElectromagnetic InductionAlternating CurrentElectromagnetic WavesModern Physics
Atoms and NucleiDual Nature of RadiationSemiconductor Devices and Logic GatesElectromagnetic Induction
Practice QuestionsMCQ (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