JEE PHYSICS MCQ: ELECTRO MAGNETIC INDUCTION

1 Hard

1 of 1

Application +4 | -1

A coil of '

\mathrm{n}

' turns and resistance '

\mathrm{R}

\Omega

is connected in series with a resistance

\frac{\mathrm{R}}{2}

. The combination is moved for time '

\mathrm{t}

' second through magnetic flux

\phi_1

\phi_2

. The induced current in the circuit is

View answer and explanation

Correct option: D

\frac{2 \mathrm{n}\left(\phi_1-\phi_2\right)}{3 \mathrm{Rt}}

Option D (

\frac{{2 \mathrm{n}(\phi_1-\phi_2)}}{{3 \mathrm{Rt}}}

) is correct because it is derived from calculating the induced emf and then dividing by the total resistance of the circuit.

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