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electronic devices thyristors
1. You have a light-dimmer circuit using an SCR. In testing the circuit, you find that IG = 0 mA and the light is still on. You conclude that the trouble might be one of the following:
(A): the gate circuit is shorted.
(B): the SCR is open.
(C): the switch is faulty.
(D): this is normal; nothing is wrong.
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