A. V m
B. 2 V m
C. V m / 2
D. 4 V m
Related Mcqs:
- In a 3 phase half wave rectifier, when firing angle is less than 90 degree, then the average dc output voltage becomes__________________?
A. Positive
B. Negative
C. Zero
D. None of these - In a full wave rectifier, the rectification ratio is approximately equal to____________?
A. 61%
B. 71%
C. 81%
D. 91% - A full wave rectifier with resistive load produces___________?
A. Second harmonic
B. Third harmonic
C. Fifth harmonic
D. Do not produce harmonics - The reverse recovery time of diode is trr = 3 μs and the rate off all of the diode current is di/dt = 30 A/μs. The storage charge current QRR is___________?
A. 130 μs
B. 135 μs
C. 140 μs
D. 145 μs - A single phase full bridge inverter can operated in load commutation mode in case load consist of______?
A. RL.
B. RLC underdamped.
C. RLC overdamped.
D. RLC critically damped - A single phase full bridge inverter can operate in load commutation mode in case load consists of____________?
A. RL.
B. RLC underdamped.
C. RLC overdamped.
D. RLC critically damped. - n a phase controlled 3 phase ac voltage controller, the harmonic present is__________?
A. 2nd
B. 3rd
C. 5th
D. 7th - A single phase one pulse controlled circuit has a resistance R and counter emf E load 400 sin(314 t) as the source voltage. For a load counter emf of 200 V, the range of firing angle control is _____?
A. 30° to 150°.
B. 30° to 180°.
C. 60° to 120°.
D. 60° to 180°. - In a 3 phase bridge rectifier the ripple frequency is _____________?
A. Equal to the input frequency
B. Twice the input frequency
C. Three times the input frequency
D. Six times the input frequency - In a square – wave operation of 3 phase CSIs, the power values are on for___________?
A. 60 degree
B. 90 degree
C. 120 degree
D. 150 degree
