Rectifiers and Converters A rotary converter operates at a high power factor zero power factor low power factor None of the listed here high power factor zero power factor low power factor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters When a rectifier is loaded which of the following voltage drops take place ? Arc voltage drop All of the listed here Voltage drop in resistance of transformer and smoothing chokes Voltage drop in transformer reactance Arc voltage drop All of the listed here Voltage drop in resistance of transformer and smoothing chokes Voltage drop in transformer reactance ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following rectifiers are primarily used for charging of low voltage batteries from AC. supply? Copper oxide rectifiers Electrolytic rectifiers Selenium rectifiers Mechanical rectifiers Copper oxide rectifiers Electrolytic rectifiers Selenium rectifiers Mechanical rectifiers ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier______ flow from anode to cathode electrons ions ions and electrons All of the listed here electrons ions ions and electrons All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Copper oxide rectifier is usually designed not to operate above 45°C 30°C 55°C 75°C 45°C 30°C 55°C 75°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters To produce cathode spot in a mercury arc rectifier an auxiliary electrode is used low mercury vapour pressures are used anode is heated tube is evacuated an auxiliary electrode is used low mercury vapour pressures are used anode is heated tube is evacuated ANSWER DOWNLOAD EXAMIANS APP
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