Rectifiers and Converters In which of the following equipment direct current is needed? All of the listed here Relay Time switches Telephones All of the listed here Relay Time switches Telephones ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of an electrolytic rectifier is nearly 40 % 60 % 70 % 50 % 40 % 60 % 70 % 50 % ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury pool rectifier, the voltage drop across its electrodes is inversely proportional to load is directly proportional to load is almost independent of load current varies exponentially with the load current is inversely proportional to load is directly proportional to load is almost independent of load current varies exponentially with the load current ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following methods may be used to convert A.C. system to D.C.? Rectifiers Rotary converters All of the listed here Motor converters Rectifiers Rotary converters All of the listed here Motor converters 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 Electrolytic rectifiers Selenium rectifiers Copper oxide rectifiers Mechanical rectifiers Electrolytic rectifiers Selenium rectifiers Copper oxide rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters To produce cathode spot in a mercury arc rectifier 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 anode is heated ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS