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 On which of the following factors the number of phases for which a rectifier should be designed depends? All of the listed here The voltage regulation of the rectifier should be low The power factor of the system should be high In the output circuit there should be no harmonics All of the listed here The voltage regulation of the rectifier should be low The power factor of the system should be high In the output circuit there should be no harmonics ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The internal efficiency of a mercury arc rectifier depends on r.m.s. value of current voltage and current current only voltage only r.m.s. value of current voltage and current current only voltage only ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The potential drop in the arc, in a mercury arc rectifier, varies 0.5 V to 1.5 V per cm length of the arc none of the listed here 2 V to 3.5 V per cm length of the arc 0.05 V to 0.2 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 2 V to 3.5 V per cm length of the arc 0.05 V to 0.2 V per cm length of the arc ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a mercury arc rectifier, the anode is usually made of aluminium copper silver graphite aluminium copper silver graphite 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
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