The diagram below depicts an RC -circuit where C = 4.00 F, R1R1 = 13.5 , R2R2 =
ID: 1780224 • Letter: T
Question
The diagram below depicts an RC-circuit where C = 4.00 F, R1R1 = 13.5 , R2R2 = 26.5 , and V0V0 = 8.50 Volts.
What is the current through R1R1 immediately after the switch S is closed?
What is the current through R2R2 immediately after the switch S is closed?
What is the current through the capacitor immediately after the switch S is closed?
What is the current through R1R1 after the switch S has been closed for a very long time? Assume that the battery does not go dead.
Explanation / Answer
A) current through R1 = V0/R1 = 8.5/13.5 = 0.63A
B) current through R2 = 0 as capacitor is a short circuit
C) current through capacitor =0.63A
D) current through R1 after a long time = V0/(R1+R2) = 8.5/(26.5+13.5) = 0.2125 A