In the circuit in the figure below, assume the resistance values are and with ca

Question

In the circuit in the figure below, assume the resistance values are

and with capacitance

The emf is

The switches are labeled S.

The capacitor is initially uncharged, and both switches are open. What is the current through the battery the instant after switchS1 is closed?
_________ A

In the circuit in the figure below, assume the resistance values are R1 = 1,800 ? and R2 = 2,300 ?, and with capacitance C1 = 55 ?F. The emf is = 5.5 V. The switches are labeled S. The capacitor is initially uncharged, and both switches are open. What is the current through the battery the instant after switchS1 is closed?

Explanation / Answer

initially when S1 is closed, the capacitor offers no resistance to the flow of current and hence the effective resistance is R1+R2

so current=V/Req

=5.5/(1800+2300)

=1.34*10^-3 A

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