How does the time constant of an inductive circuit change with variations in inductance and resistance?

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It grows when inductance rises and resistance fallsIt grows when both inductance and resistance increaseIt grows when both inductance and resistance decreaseIt grows when inductance decreases and resistance increasesIt remains zero

Explanation

The time constant (τ) of an inductive circuit is defined as the ratio of inductance (L) to resistance (R), τ = L/R. Therefore, increasing inductance or decreasing resistance will increase the time constant, while increasing resistance or decreasing inductance will reduce it.