Rectifiers and Converters In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as critical grid voltage non of the listed here maximum grid voltage all of the listed here critical grid voltage non of the listed here maximum grid voltage all of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters With a motor converter it is possible to obtain D.C. voltage only upto 1700-2000 V 600-800 V 1000-1200 V 200-100 V 1700-2000 V 600-800 V 1000-1200 V 200-100 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following equipment direct current is needed? All of the listed here Time switches Telephones Relay All of the listed here Time switches Telephones Relay ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following is reversible in action? Motor converter Rotary converter Motor generator set All of the listed here Motor converter Rotary converter Motor generator set All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a rotary converter I2R losses as compared to a D.C. generator of the same size will be Remain same None of the listed here Less More Remain same None of the listed here Less More ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters To produce cathode spot in a mercury arc rectifier anode is heated low mercury vapour pressures are used tube is evacuated an auxiliary electrode is used anode is heated low mercury vapour pressures are used tube is evacuated an auxiliary electrode is used ANSWER DOWNLOAD EXAMIANS APP
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