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A capacitor is charged to a potential of 12.0 V and is then connected to a...

A capacitor is charged to a potential of 12.0 V and is then connected to a voltmeter having an internal resistance of 3.70 MΩ . After a time of 3.90 s the voltmeter reads 3.1 V

Part A

What is the capacitance?

Part B

What is the time constant of the circuit?

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A capacitor is charged to a potential of 12.0 V and is then connected to a voltmeter having an internal resistance of 3.70 MQ

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