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Question

What is the time constant of a circuit where a pacitor(C=10nF) is being charged connected to a cell through a resistor of 10Ω?


A
100ns
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B
1ns
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C
10ns
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D
1us
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Solution

The correct option is A 100ns
The constant ‘RC’ has dimensions of time and is called time constant of the circuit.
Thus in this circuit, Time constant=RC=10×10×109s=100 ns.

Physics

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