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Friday, October 11, 2013

An SCR is considered to be a semi-controlled device because (GATE-EE-2009)

An SCR is considered to be a semi-controlled device because (GATE-EE-2009)

(A) It can be turned OFF but not ON with a gate pulse.

(B) It conducts only during one half-cycle of an alternating current wave.

(C) It can be turned ON but not OFF with a gate pulse.

(D) It can be turned ON only during one half-cycle of an alternating voltage wave.

ANSWER: C

An SCR is considered to be a semi-controlled device because it can be turned ON but not OFF with a gate pulse.

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