JEE PHYSICS MCQ: CURRENT ELECTRICITY

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Application +4 | -1

An inductor

(L=20 \mathrm{\,H})

, a resistor

(R=100 \, \Omega)

and a battery (

E=10 \mathrm{~V}

) are connected in series. After a long time, the circuit is short-circuited and then the battery is disconnected Find the current in the Circuit at I ns after short circuiting

View answer and explanation

Correct option: D

6.7 \times 10^{-4} \mathrm{~A}

Option D (

6.7 \times 10^{-4} \mathrm{~A}

) is correct because it is calculated using the formula for current decay in an LR circuit after short-circuiting.

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