Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required ?

Related Mcqs:

Ageing of a selenium rectifier may change the output voltage by__________?

A. 5 to 10 per cent B. 15 to 20 per cent C. 25 to 30 per cent D. none of the above...

The efficiency of an electrolytic rectifier is nearly____________?

A. 80% B. 70% C. 60% D. 40%...

It is the_________of the transformer on which the magnitude of angle of overlap depends?

A. resistance B. capacitance C. leakage reactance D. any of the above...

If cathode and anode connections in a mercury arc rectifier are inter changed_____________?

A. the rectifier will not operate B. internal losses will be reduced C. both ion and electron streams will move in the same direction D. the rectifier will operate at reduced efficiency...

The cathdde voltage drop, in a mercury arc rectifier, is due to_____________?

A. expenditure of energy in ionization B. surface resistance C. expenditure of energy in overcoming the electrostatic field D. expenditure of energy in liberating electrons from the mercury...