A 6.30 ? F capacitor that is initially uncharged is connected in series with a 4

Question

A 6.30?F capacitor that is initially uncharged is connected in series with a 4400? resistor and a 510V emf source with negligible internal resistance.

A) Just after the circuit is completed, what is the voltage drop across the capacitor?

B) Just after the circuit is completed, what is the voltage drop across the resistor?

C) Just after the circuit is completed, what is the charge on the capacitor?

D) Just after the circuit is completed, what is the current through the resistor?

E) A long time after the circuit is completed (after many time constants), what are the values of the preceding four quantities? (VC,VR,Q,IR  )

Explanation / Answer

when capacitor is uncharged, its resistence is infinite, that is current is zero,voltage across is all the emf in the circuit

part A)

Vc=0 V

part b)

Vr=510

part c)

Qc=0

part d)

Ir=510*/R

part e)

Vc=510

Qc=510*C

Vr=0

Ir=0

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