A coil of inductance 0.2 H and 1.0 Ω resistance is connected to a 90 V source. At what rate does the current in the coil grow at the instant the coil is connected to the source?

Question

A coil of inductance 0.2 H and 1.0 Ω resistance is connected to a 90 V source. At what rate does the current in the coil grow at the instant the coil is connected to the source?, 450 A s - 1, 4.5 A s - 1, 45 A s - 1, 0.45 A s - 1

MARKS App · Accepted Answer

From dI dt = e L = 90 0 .2 = 450 A s - 1

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