When SCR is OFF, the current in the circuit is ________________?
A. Exactly zero
B. Small leakage current
C. Large leakage current
D. None of the above
We can control a.c. power in a load by connecting ______________?
A. Two scrs in series
B. Two scrs in parallel
C. Two scrs in parallel opposition
D. None of the above
If firing angle in an SCR circuit is increased, the output _____________?
A. Remains the same
B. Is increased
C. Is decreased
D. None of the above
An SCR can exercise control over____________of a.c. supply?
A. Positive half-cycles only
B. Negative half-cycles only
C. Both positive and negative half-cycles
D. Positive or negative half-cycles
The Q of a tuned amplifier is generally _________________?
A. Less than 5
B. Less than 10
C. More than 10
D. None of the above
Tuned class C amplifiers are used for RF signals of________________?
A. Low power
B. High power
C. Very high power
D. None of the above