Question on: SS2 Physics - Electromagnetism
In an RC circuit, the time constant represents:
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A
The time taken for the capacitor to charge to its maximum voltage
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B
The time taken for the capacitor to discharge completely
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C
The time taken for the circuit to reach steady-state conditions
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D
The time taken for the voltage across the capacitor to decrease by 37% of its initial value
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Correct Option: D
Explanation: The time constant represents the time taken for the voltage across the capacitor to increase or decrease by approximately 63.2% (1 - 1/e) of its initial or final value.
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