A. Exactly zero
B. Small leakage current
C. Large leakage current
D. None of the above
When SCR is OFF, the current in the circuit is ________________? Read More »
SCR (Silicon Controlled Rectifiers) A. Two SCRs in series
B. Two SCRs in parallel
C. Two SCRs in parallel opposition
D. None of the above
We can control a.c. power in a load by connecting ______________? Read More »
SCR (Silicon Controlled Rectifiers) A. Remains the same
B. Is increased
C. Is decreased
D. None of the above
If firing angle in an SCR circuit is increased, the output _____________? Read More »
SCR (Silicon Controlled Rectifiers) A. Positive half-cycles only
B. Negative half-cycles only
C. Both positive and negative half-cycles
D. Positive or negative half-cycles
An SCR can exercise control over____________of a.c. supply? Read More »
SCR (Silicon Controlled Rectifiers) A. Gate
B. Cathode
C. Anode
D. None of the above
When SCR starts conducting, then _____________ loses all control? Read More »
SCR (Silicon Controlled Rectifiers)