A Series RC Circuit Has a Time Constant of 1

question 9

Multiple Choice

A series RC circuit has a time constant of 1.0 s.The battery has a voltage of 50 V and the maximum current just after closing the switch is 500 mA.The capacitor is initially uncharged.What is the charge on the capacitor 2.0 s after the switch is closed?

• A)0.43 C
• B)0 66 C
• C)0.86 C
• D)0.99 C

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