An RC circuit consists of a resistor with resistance 1.0 k,a 120-V battery,and two capacitors,C₁ and C₂,with capacitances of 20.0 µF and 60.0 µF,respectively.Initially,the capacitors are uncharged;and the switch is closed at t = 0 s.
-What is the current through the resistor a long time after the switch is closed? Recall that current is the charge per unit time that flows in a circuit.
A)0.60 A
B)0.12 A
C)0.24 A
D)0.48 A
E)zero amperes

Question

An RC circuit consists of a resistor with resistance 1.0 k,a 120-V battery,and two capacitors,C₁ and C₂,with capacitances of 20.0 µF and 60.0 µF,respectively.Initially,the capacitors are uncharged;and the switch is closed at t = 0 s.
-What is the current through the resistor a long time after the switch is closed? Recall that current is the charge per unit time that flows in a circuit.
A)0.60 A 
B)0.12 A 
C)0.24 A 
D)0.48 A 
E)zero amperes

Quizplus · Accepted Answer

A long time after the switch is closed in a circuit containing a resistor and a capacitor, the capacitor will be fully charged and act like an open circuit. This means no current will flow through the circuit, resulting in zero amperes of current through the resistor.

An RC Circuit Consists of a Resistor with Resistance 1