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    Capacitor : Discharge Time

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    At time t=0, the voltage across a capacitor rated at 3/10 F is 10V. a switch is closed and the capacitor is in series with a resistor r=50 ohms. How long does it take for the voltage to decay to 4 volts?

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    https://brainmass.com/engineering/electronic-engineering/time-voltagel-decay-example-problem-193826

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