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Alternating Current

JEE Main level, single correct, medium

151 of 190

Question 151 of 190

A resistance $R$ and a capacitance $C$ are connected in series to a battery of negligible internal resistance through a key. The key is closed at $t=$ 0 . If after $t$ sec the voltage across the capacitance was seven times the voltage across $\mathrm{R}$ , the value of $\mathrm{t}$ is

Show answer and solution

Answer: (A) $3 R C \ell n 2$

t=3 R C \ln 2

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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More Physics practice

JEE Main Physics practice question on Alternating Current (AC Circuits), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

A resistance RRR and a capacitance CCC are connected in series to a battery of negligible internal resistance through a key. The key is closed at t=t=t= 0 . If after ttt sec the voltage across the capacitance was seven times the voltage across R\mathrm{R}R, the value of t\mathrm{t}t is

JEE Main question paper PDF

More Physics practice

A resistance $R$ and a capacitance $C$ are connected in series to a battery of negligible internal resistance through a key. The key is closed at $t=$ 0 . If after $t$ sec the voltage across the capacitance was seven times the voltage across $\mathrm{R}$ , the value of $\mathrm{t}$ is