Power Electronics

A. Top switch of each leg is on at any instant
B. Bottom switch of each leg is on at any instant
C. Either A. or B.
D. None of these

A. A capacitor
B. A variable resistor
C. An inductor
D. Only (a) and (b)

A. Square
B. Sinusoidal
C. Triangular
D. Saw – tooth

A. Positive voltage at the gate terminal
B. Negative voltage at the gate terminal
C. Either (a) or (b)
D. None of these

A. Time domain
B. Frequency domain
C. Either A. or B.
D. None of these

A. DIAC conducts in forward direction and TRIAC conducts in reverse direction
B. Both conducts in forward direction
C. Both conducts in reverse direction
D. Both conducts in either direction

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

A. Linear function
B. Non linear function
C. Constant function
D. None of these

A. A rectifier
B. An inverter
C. A chopper
D. A regulator

A. Phase lead helps to increase the phase margin of the control loop
B. Phase lag helps to increase the phase margin of the control loop
C. Phase lead helps to decrease the phase margin of the control loop
D. Phase lag helps to decrease the phase margin of the control loop