Rectifiers and Converters In selenium rectifiers efficiencies ranging from ______ to ______ percent are attainable 20, 30 75, 85 30, 60 40, 50 20, 30 75, 85 30, 60 40, 50 ANSWER DOWNLOAD EXAMIANS APP
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 Mercury, in arc rectifiers, is chosen for cathode because Its boiling point and specific heat are low Its atomic weight is quite high All of the listed here Its ionization potential is relatively low Its boiling point and specific heat are low Its atomic weight is quite high All of the listed here Its ionization potential is relatively low ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following is reversible in action? Motor generator set All of the listed here Motor converter Rotary converter Motor generator set All of the listed here Motor converter Rotary converter ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The advantage of mercury arc rectifier is that All of the listed here it has high efficiency it is light in weight and occupies small floor space it is comparatively noiseless All of the listed here it has high efficiency it is light in weight and occupies small floor space it is comparatively noiseless ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers are primarily used for charging of low voltage batteries from AC. supply? Mechanical rectifiers Copper oxide rectifiers Electrolytic rectifiers Selenium rectifiers Mechanical rectifiers Copper oxide rectifiers Electrolytic rectifiers Selenium rectifiers ANSWER DOWNLOAD EXAMIANS APP
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