The Figure Shows a Simple RC Circuit Consisting of a 10.0-µF

Multiple Choice

The figure shows a simple RC circuit consisting of a 10.0-µF capacitor in series with a resistor.Initially,the switch is open as suggested in the figure.The capacitor has been charged so that the potential difference between its plates is 100.0 V.At t = 0 s,the switch is closed.The capacitor discharges exponentially so that 2.0 s after the switch is closed,the potential difference between the capacitor plates is 37 V.In other words,in 2.0 s the potential difference between the capacitor plates is reduced to 37 % of its original value.

-Determine the potential drop across the resistor R at t = 2.0 s (i.e. ,two seconds after the switch is closed) .

A) zero volts
B) 37 V
C) 63 V
D) 87 V
E) 100 V