At time after a capacitor begins charging through a resistor from a constant-voltage…
PHYSICS · Single correct · CBSE · Physics · Current Electricity · Current Electricity
Problem
At time t=τ after a capacitor begins charging through a resistor from a constant-voltage source, the voltage across the capacitor has reached what fraction of its final steady-state value?
(a) about 63%
(b) about 37%
(c) about 50%
(d) 100%