(a) Just after the circuit is completed, what is the voltage drop across the cap

Question

(a) Just after the circuit is completed, what is the voltage drop across the capacitor

ans = 0

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

ans = 130

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

ans = 0

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

ans = .017

(e) A long time after the circuit is completed (after many time constants) what are the values of the quantities in parts (a) — (d)?

Explanation / Answer

Resistance = R = 7550 ohm

emf of source = E=130 V negligible internal resistance.

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

B) Just after the circuit is completed, the voltage drop across the resistor is130 V

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

D) the current through the resistor is just after circuit completed = 130 / 7550 = 0.017 A

E) A long time after the circuit is completed the valuesof the quantities in parts (a)-(d) are

A) After long time,the voltage drop across the capacitor is 130 V

B) After long time,the voltage drop across the resistor is zero

C) After long time,the charge through the resistor is zero

D) After long time,the current through the resistor is zero

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