Example of a voltage clamping device______________?
A. fast acting fuse
B. snubber circuit
C. metal oxide varistor
D. aluminium block
A. fast acting fuse
B. snubber circuit
C. metal oxide varistor
D. aluminium block
A. Passive filter
B. Active filter
C. Both passive and active filters
D. None of these
A. B.JTs
B. MOSFETs
C. IGBTs
D. All of above
A. it can be turned OFF but not ON with a gate pulse.
B. it conducts only during one half cycle of an alternating current wave.
C. it can be turned ON but not OFF with a gate pulse.
D. it can be turned ON only during one half cycle of an AC.
A. Rms value of the ac component of load voltage to the dc voltage
B. Average value of the ac component of load voltage to the peak value of voltage
C. Average value of the dc component of load voltage to the ac voltage
D. Peak value of the dc component of load voltage to the ac voltage
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. High di/dt
B. High dv/dt
C. Low di/dt
D. Low dv/dt