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 The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ? None of the listed here Both of the listed here They are mechanically strong They do not require any voltage for filament heating None of the listed here Both of the listed here They are mechanically strong They do not require any voltage for filament heating ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following equipment direct current is needed? Relay Time switches All of the listed here Telephones Relay Time switches All of the listed here Telephones ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a three-phase mercury arc rectifiers each anode conducts for One-fourth of a cycle One-half a cycle Two-third of a cycle One-third of a cycle One-fourth of a cycle One-half a cycle Two-third of a cycle One-third of a cycle ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a rotary converter armature currents are 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 d.c. only partly a.c. and partly d.c. ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In selenium rectifiers efficiencies ranging from ______ to ______ percent are attainable 40, 50 30, 60 75, 85 20, 30 40, 50 30, 60 75, 85 20, 30 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS