1

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

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-0

The current in a coil changes steadily from $$3 \mathrm{~A}$$ to $$5 \mathrm{~A}$$ in $$0.2 \mathrm{~s}$$ when an emf of $$2 \mu \mathrm{V}$$ is induced in it. The self-inductance of the coil is

2

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

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-0

The magnetic flux linked with a coil is given by the equation: $$\phi=8 t^2+t+10$$. The e.m.f. induced in the coil in the $$3^{\text {rd }}$$ second will be

3

COMEDK 2024 Morning Shift

MCQ (Single Correct Answer)

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-0

Select the unit of the coefficient of mutual induction from the following.

4

COMEDK 2024 Morning Shift

MCQ (Single Correct Answer)

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Around the central part of an air cored solenoid of length $$20 \mathrm{~cm}$$ and area of cross section $$1.4 \times 10^{-3} \mathrm{~m}^2$$ and 3000 turns, another coil of 250 turns is closely wound. A current $$2 \mathrm{~A}$$ in the solenoid is reversed in $$0.2 \mathrm{~s}$$, then the induced emf produced is

Questions Asked from Electromagnetic Induction (MCQ (Single Correct Answer))

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