In an RC circuit the time constant represents - SS2 Physics Electromagnetism Question
In an RC circuit, the time constant represents:
A
The time taken for the capacitor to charge to its maximum voltage
B
The time taken for the capacitor to discharge completely
C
The time taken for the circuit to reach steady-state conditions
D
The time taken for the voltage across the capacitor to decrease by 37% of its initial value
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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