In an RC circuit if the capacitance is doubled ...

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In an RC circuit, if the capacitance is doubled while the resistance remains constant, what happens to the time constant?

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Correct Option: A

Explanation: The time constant (τ) of an RC circuit is inversely proportional to the product of resistance (R) and capacitance (C). If C is doubled while R remains constant, τ = RC is doubled as well.