If an uncharged capacitor, a resistor, a switch and a 12 V battery are connected in series, at approximately what time will the capacitor reach full charge?
A)12 × R × C
B)R × C
C)5 × R × C
D)The time cannot be predicted.

Question

Quizplus · Accepted Answer

The time constant for an RC circuit is given by τ = R × C. A capacitor is considered to be fully charged after about 5 time constants, or 5 × R × C.

If an Uncharged Capacitor, a Resistor, a Switch and a 12