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Electricity and Magnetism

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Moderate

RC Circuit: Charge and Discharge

EANDM-ZHK94Z

In the circuit below the capacitor is initially uncharged. At time $t=0 \:\text s$ the switch is thrown to position A and the capacitor begins to charge. After 7 minutes the switch is moved quickly to position B. The circuit parameters are: the battery voltage $\Delta V = 15 \:\text V$, $R = 60 \:\text k \Omega$, $C= 0.01 \:\text {F}$.

Created for Albert.io. Copyright 2016. All rights reserved.

What is the voltage across the capacitor 3 minutes after the switch is moved to B?

A

$8.3 \:\text V$

B

$2.7 \:\text V$

C

$9.4 \:\text V$

D

$5.6 \:\text V$

E

$3.4 \:\text V$