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Electromagnetic Induction

JEE Main level, numerical answer, medium

109 of 153

Question 109 of 153

Consider an electrical circuit containing a two way switch $S.$ Initially $S$ is open and then ${T}_{1}$ is connected to ${T}_{2}.$ As the current in $R=6\Omega$ attains a maximum value of steady-state level, ${T}_{1}$ is disconnected from ${T}_{2}$ and immediately connected to ${T}_{3}.$ Potential drop across $r=3\Omega$ resistor immediately after ${T}_{1}$ is connected to ${T}_{3}$ is $______V.$ (Round off to the Nearest Integer)

Show answer and solution

Answer: 3

When

{T}_{1}

and

{T}_{2}

are connected, then the steady state current in the inductor

I=\dfrac{6}{6}=1A

When

{T}_{1}

and

{T}_{3}

are connected then current through inductor remains same. So potential difference across

3\Omega

V=Ir=1\times 3=3

V

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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