Question

An RC circuit is connected across a DC voltage source through an open switch. The switch...

An RC circuit is connected across a DC voltage source through an open switch. The switch is closed at t = 0s. Which of the following is a correct statement regarding this circuit?

a) The voltage on this capacitor after two time constants is about 100% of its maximum value

b) The charge on the capacitor after one time constant is about 50% of its maximum value

c)The charge on the capacitor after four time constants is about 98% of the maximum value

d) The voltage on the capacitor after two time constants is about 14% of the maximum value

e)The charge on the capacitor after one time constant is about 25% of its maximum value

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