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JEE Main 202523 JanuaryMorning Shift
Exam
JEE Main
Year
2025
Date
23 January
Shift
Morning Shift
Subject
Physics
Chapter
Electromagnetic Induction

JEE Main 2025 · 23 January · Morning Shift · Physics · Electromagnetic Induction

In the given circuit the sliding contact is pulled outwards such...

In the given circuit the sliding contact is pulled outwards such that electric current in the circuit changes at the
In the given circuit the sliding contact is pulled outwards such that electric current in the circuit changes at the rate of 8 A/s8 \mathrm{~A} / \mathrm{s}. At an instant when R is 12Ω12 \Omega, the value of the current in the circuit will be ______ A.

Correct answer

0

Step-by-step solution

ε−LdIdt−IR=012−3×(−8)−I×12=0I=3\begin{aligned} & \varepsilon-\frac{\mathrm{LdI}}{\mathrm{dt}}-\mathrm{IR}=0 \\ & 12-3 \times(-8)-\mathrm{I} \times 12=0 \\ & \mathrm{I}=3\end{aligned}
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