Question: You have a light-dimmer circuit using an SCR. In testing the circuit, you find that I G = 0 mA and the light is still on. You conclude that the trouble might be one of the following:
Options
A : the SCR is open.
B : the switch is faulty.
C : the gate circuit is shorted.
D : this is normal; nothing is wrong.
Thyristors - General Questions more questions
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Which symbol represents a UJT?
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