Rectifiers and Converters The efficiency of an electrolytic rectifier is nearly 50 % 40 % 60 % 70 % 50 % 40 % 60 % 70 % ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Mercury, in arc rectifiers, is chosen for cathode because Its boiling point and specific heat are low All of the listed here Its ionization potential is relatively low Its atomic weight is quite high Its boiling point and specific heat are low All of the listed here Its ionization potential is relatively low Its atomic weight is quite high ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The voltage drop between the anode and cathode, of a mercury arc rectifier comprises of the following anode drop and arc drop anode drop, cathode drop and arc drop anode drop and cathode drop cathode drop and arc drop anode drop and arc drop anode drop, cathode drop and arc drop anode drop and cathode drop cathode drop and arc drop ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a grid control of mercury arc rectifiers when the grid is made positive relative to cathode, then it the electrons on their may to anode. decelerates accelerates none of the listed here any of the listed here decelerates accelerates none of the listed here any of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 85 to 90% 90 to 95% 65 to 75% 80 to 85% 85 to 90% 90 to 95% 65 to 75% 80 to 85% ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a rotary converter armature currents are d.c. only partly a.c. and partly d.c. None of the listed here a.c. only d.c. only partly a.c. and partly d.c. None of the listed here a.c. only ANSWER DOWNLOAD EXAMIANS APP