A dc source of 100 V supplies a purely inductive load 0.1

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A dc source of 100 V supplies a purely inductive load 0.1 H. The controller is a thyristor in series with the source and load. The latching current specified is 100 mA. The minimum width of the gating pulse to ensure thyristor turn ON is ______ s .

1. 100
2. 200
3. 500
4. 1000

Correct Option: A

For an inductive load,

V = L	di	=	LI
	dt		T

⇒ T =	LI	=	0.1 × 100 × 10^-3	= 0.1 ms or 100 μs
	V		100