Radio Amateur Quiz Canadian License

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Question A-001-001-008

What is the time constant of a circuit having a 100 microfarad capacitor in series with a 470 kilohm resistor?

Correct Answer

47 seconds

Explanation

The time constant (τ) of an RC circuit is calculated as R × C. τ = (470 × 10^3 Ω) × (100 × 10^-6 F) = 47 seconds.

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