Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Single-phase Three-phase Two-phase Six-phase Single-phase Three-phase Two-phase Six-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The ionization potential of mercury is approximately 5.4 V None of the listed here 10.4 V 16.4 V 5.4 V None of the listed here 10.4 V 16.4 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a three-phase mercury arc rectifiers each anode conducts for One-half a cycle One-third of a cycle Two-third of a cycle One-fourth of a cycle One-half a cycle One-third of a cycle Two-third of a cycle One-fourth of a cycle ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In phase-shift control method the control is carried out by varying the of grid voltage. All of the listed here phase magnitude polarity All of the listed here phase magnitude polarity ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Mercury, in arc rectifiers, is chosen for cathode because Its atomic weight is quite high Its ionization potential is relatively low All of the listed here Its boiling point and specific heat are low Its atomic weight is quite high Its ionization potential is relatively low All of the listed here Its boiling point and specific heat are low ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The efficiency of the copper oxide rectifier seldom exceeds 90 to 95% 65 to 75% 85 to 90% 80 to 85% 90 to 95% 65 to 75% 85 to 90% 80 to 85% ANSWER DOWNLOAD EXAMIANS APP
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