A capacitor is charged through a resistor.
The cell has electromotive force (e.m.f.) 1.50 V and negligible internal resistance.
The time constant of the circuit is 10 s. The switch is closed at time t = 0. At time t, the potential difference across the resistor is 0.60 V.
Which expression is correct?
0.60 = 1.50e–0.10t
0.90 = 1.50(e–10t − 1)
0.60 = 1.50e–10t
0.60 = 1.50(1–e–0.10t)
Did this page help you?