Rectifiers and Converters Copper oxide rectifier is usually designed not to operate above 30°C 45°C 75°C 55°C 30°C 45°C 75°C 55°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a rotary converter armature currents are None of the listed here 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 ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Glass rectifiers are usually made into units capable of D.C. output (maximum continuous rating) of 400 A at 400 V 500 A at 500 V 100 A at 100 V 300 A at 300 V 400 A at 400 V 500 A at 500 V 100 A at 100 V 300 A at 300 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of an electrolytic rectifier is nearly 40 % 50 % 60 % 70 % 40 % 50 % 60 % 70 % ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Electrolysis Illumination Variable speed operation Traction Electrolysis Illumination Variable speed operation Traction ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The potential drop in the arc, in a mercury arc rectifier, varies 2 V to 3.5 V per cm length of the arc 0.5 V to 1.5 V per cm length of the arc none of the listed here 0.05 V to 0.2 V per cm length of the arc 2 V to 3.5 V per cm length of the arc 0.5 V to 1.5 V per cm length of the arc none of the listed here 0.05 V to 0.2 V per cm length of the arc ANSWER DOWNLOAD EXAMIANS APP
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