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JEE MAIN 2025
23-01-2025 SHIFT-1
Question
In the given circuit the sliding contact is pulled outwards such that electric current in the circuit changes at the rate of 8A/s. At an instant when R is $12\Omega $, the value of the current in the circuit will be _______ A.
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Solution
ANSWER 3
$\varepsilon -\frac{{\text{LdI}}}{{\text{dt}}}-\text{IR}=0$
$12-3\times (-8)-\text{I}\times 12=0$
$\text{I}=3$
Question Tags
JEE Main
Physics
Easy
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