Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by 15 to 20 per cent None of the listed here 5 to 10 per cent 25 to 30 per cent 15 to 20 per cent None of the listed here 5 to 10 per cent 25 to 30 per cent ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A rotary converter operates at a zero power factor low power factor high power factor None of the listed here zero power factor low power factor high power factor None of the listed here 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 A rotary converter is a single machine with two armatures and one field none of the listed here one armature and one field one armature and two fields two armatures and one field none of the listed here one armature and one field one armature and two fields ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a rotary converter armature currents are a.c. only partly a.c. and partly d.c. d.c. only None of the listed here a.c. only partly a.c. and partly d.c. d.c. only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier______ flow from anode to cathode ions and electrons All of the listed here electrons ions ions and electrons All of the listed here electrons ions ANSWER DOWNLOAD EXAMIANS APP
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