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.
(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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