Number of PN junction in an SCR is____________?
Number of PN junction in an SCR is____________?
A. Two
B. Three
C. Four
D. Five
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If a shunt motor is started with its field winding open then___________?
If a shunt motor is started with its field winding open then___________?A. It will rotate at the same speed as that with its field winding closed
B. It will rotate at less speed as that with its field winding closed
C. It will rotate at dangerously high speed
D. None of theseAn SCR can be used___________?
An SCR can be used___________?A. as static conductor
B. for power control
C. for speed control of dc shunt motor
D. All of theseIn a silicon controlled rectifier, the load is connected___________?
In a silicon controlled rectifier, the load is connected___________?A. Across anode
B. In series with anode
C. Across cathode
D. In series with cathodeIn forward blocking mode of a thyristor________?
In forward blocking mode of a thyristor________?A. junction J2 is in reverse bias and J1, J3 is in forward bias.
B. junction J3 is in forward bias and J1, J2 is in reverse bias.
C. Junction J1, J3 is in reverse bias and J2 is in forward bias.
D. Junction J1 and J2 is in forward bias and J3 is in reverse bias.The man made noise sources is / are_____________?
The man made noise sources is / are_____________?A. Motors
B. Switches, radio interferences
C. Computers, digital electronics
D. All of theseIn BJT, the forward biased base emitter junction inject holes from base to emitter, the holes_______?
In BJT, the forward biased base emitter junction inject holes from base to emitter, the holes_______?A. Do not contribute to the collector current
B. Result in net current flow component into the base
C. Contribute to the collector current
D. Only (a) and (b)
E. Only (b) and (c)