is used in magnetic braking in trains.

Important Questions on Electromagnetic Induction

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Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 8

The induced emf in a coil of self inductance $\mathrm{L}$, when current in it changes at the rate of $\left(\frac{\mathrm{di}}{\mathrm{dt}}\right)$is given by $\mathrm{\epsilon }=$ _____ .

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Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 9

The dimensional formula of magnetic flux is

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Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 10

Motional emf and induced $emf$ are different (True/false)

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Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 11

A thin conducting circular ring (radius $r$) is rotated with angular velocity $\omega$ in its own plane about its axis, in a region of uniform magnetic field $B.$ The $emf$ induced in the ring is

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Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 12

Lenz's law is conservation of mechanical energy. (True/false)

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Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 13

Mutual induction of the two coil depends upon rate of change of current in one coil. (True/false)

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Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 14

Work done upon a charged particle in a region of induced electric field, from one point to another depends upon the path followed. (True/false)

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Gamma Question Bank for Medical Physics>Chapter 21 - Electromagnetic Induction>Assignment Set-1>Q 15

In AC generators, when flux passing through the armature coil is maximum, the$emf$induced in the coil is also maximum. (True/false)