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Rectifiers and Converters

Rectifiers and Converters
It is the_______of the transformer on which the magnitude of angle of overlap depends.

leakage reactance
all of the listed here
resistance
capacitance

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Rectifiers and Converters
In phase-shift control method the control is carried out by varying the of grid voltage.

All of the listed here
polarity
magnitude
phase

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Rectifiers and Converters
The efficiency of an electrolytic rectifier is nearly

60 %
40 %
70 %
50 %

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Rectifiers and Converters
The voltage drop between the anode and cathode, of a mercury arc rectifier comprises of the following

anode drop, cathode drop and arc drop
anode drop and cathode drop
anode drop and arc drop
cathode drop and arc drop

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Rectifiers and Converters
In a mercury arc rectifier characteristic blue luminosity is due to

colour of mercury
ionization
high temperature
electron streams

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Rectifiers and Converters
In a phase-shift control method, the phase shift between anode and grid voltages can be achieved by means of

Shunt motor
Synchronous generator
Induction regulator
Synchronous motor

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