Category: Power Electronics

A. One resistor across the string
B. Resistors of the same value across each SCR
C. Resistors of different values across each SCR
D. One resistor in series with each SCR

A. Suppressing emissions
B. Reducing the efficiency of the coupling path
C. Reducing the susceptibility of the receptor
D. All of these

A. High power phase control
B. High power current control
C. Low power current control
D. Low power phase control

A. Kq/T
B. KT/q
C. qT/K
D. (K2/q)(T + 1/T – 1)

A. Cmin = V / ( Vr L f2 )
B. Cmin= ( 1 – D ) V / ( Vr L f2 )
C. Cmin= ( 1 – 2 D ) V / 32 ( Vr L f2 )
D. Cmin= ( 1 – 2 D ) V / 42 ( Vr L f2 )

A. Snubber circuit
B. Fuse
C. Equalizing circuit
D. Circuit breaker

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 these

A. Large number of reactive component
B. Low stress on switch
C. Low stress on capacitor
D. None of these

A. 1.5.
B. 0.5.
C. 1.0.
D. 1.2.

A. There is always a path for the dc current independent of the ac line
B. There is always a path for the ac current independent of the ac line
C. There is always a path for the dc current dependent of the ac line
D. There is always a path for the ac current independent of the ac line