Radio Amateur Quiz Canadian License

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Question A-001-001-003

What is the term for the time required for the current in an RL circuit to build up to 63.2% of the maximum value?

Correct Answer

One time constant

Explanation

For an RL circuit, one time constant (τ = L/R) signifies the duration for the current to attain 63.2% (approximately 1 - 1/e) of its ultimate steady-state value.

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