Category: Power Electronics

A. 100 mA
B. 500 mA
C. 1 A
D. 2 A

A. Two SCR’s connected in reverse parallel
B. Two SCR’s connected in parallel
C. Two SCR’s connected in series
D. Two BJT’s connected in series

a. Reversal of power can be controlled by firing angle
b. Very good dynamic behavior
c. They can link two AC system operating unsynchronized
d. All of these

A. R and C in series but with diode across C
B. R and C in series but with diode across R
C. Series R and diode with C across R
D. Series R and diode with C across R

A. Iron
B. Aluminium
C. Carbon
D Silver

A. Average value of the output inductor current
B. Product of an average inductor current and a function of duty ratio
C. Either A. or B.
D. None of these

A. Negatively affected by firing angle
B. Negatively affected by distortion of the input current
C. Positively affected by both firing angle and distortion of the input current
D. Both (a) and (b)

A. Current transformer
B. Potential transformer
C. Power transformer
D. SCR

A. Symmetric triangular voltage across itself
B. Symmetric rectangular voltage across itself
C. Symmetric trapezoidal voltage across itself
D. Symmetric sinusoidal voltage across itself

A. A parallel combination of controllable switch and a diode is used
B. A parallel combination of controllable switch and capacitor is used
C. A series combination of controllable switch and a diode is used
D. A series combination of controllable switch and a capacitor is used