A Resistor,an Uncharged Capacitor,a Dc Voltage Source,and an Open Switch

question 200

Multiple Choice

A resistor,an uncharged capacitor,a dc voltage source,and an open switch are all connected in series.The switch is closed at time t = 0 s.Which one of the following is a correct statement about the circuit?

• A)The capacitor charges to its maximum value in one time constant.
• B)The capacitor charges to its maximum value in two time constants.
• C)The potential difference across the resistor is always equal to the potential difference across the capacitor.
• D)Current flows through the circuit even after the capacitor is essentially fully charged.
• E)Once the capacitor is essentially fully charged,there is no current in the circuit.

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