An RC Circuit Consists of a Resistor with Resistance 1 $\varOmega$

question 52

Multiple Choice

An RC circuit consists of a resistor with resistance 1.0 k $\varOmega$ , 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 time constant of the circuit?

• A)1.0 × 10^-2 s
• B)2.0 × 10^-2 s
• C)6.0 × 10^-2 s
• D)8.0 × 10^-2 s
• E)3.0 × 10^-1 s

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