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 non of the listed here maximum grid voltage critical grid voltage all of the listed here non of the listed here maximum grid voltage critical grid voltage all of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The ignited or auxiliary anode in mercury arc rectifier is made of Graphite Aluminium Copper Boron carbide Graphite Aluminium Copper Boron carbide ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters When a rectifier is loaded which of the following voltage drops take place ? Arc voltage drop Voltage drop in resistance of transformer and smoothing chokes All of the listed here Voltage drop in transformer reactance Arc voltage drop Voltage drop in resistance of transformer and smoothing chokes All of the listed here Voltage drop in transformer reactance ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of an electrolytic rectifier is nearly 60 % 40 % 50 % 70 % 60 % 40 % 50 % 70 % ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier positive ions are attracted towards anode mercury pool cathode shell bottom anode mercury pool cathode shell bottom ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Selenium rectifier can be operated at temperatures as high as 25°C 60°C 40°C 75°C 25°C 60°C 40°C 75°C ANSWER DOWNLOAD EXAMIANS APP
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