A capacitor of capacitance $C=1 \mu \mathrm{~F}$ is suddenly connected to a battery of 100 volt thro

Question

A capacitor of capacitance $C=1 \mu \mathrm{~F}$ is suddenly connected to a battery of 100 volt through a resistance $R=100 \Omega$. The time taken for the capacitor to be charged to get 50 V is [Take $\ln 2=0.69$ ]

Professor PC Thomas Classes · Answer

Time constant $	au = RC = 100 	imes 10^{-6} = 10^{-4} 	ext{ s}$.