Rectifiers and Converters The potential drop in the arc, in a mercury arc rectifier, varies 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 0.5 V to 1.5 V per cm length of the arc 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 polarity magnitude All of the listed here phase polarity magnitude ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Two-phase Three-phase Six-phase Single-phase Two-phase Three-phase Six-phase Single-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following AC. motors is usually used in large motor-generator sets? Slip ring induction motor Synchronous motor Any of the listed here Squirrel cage induction motor Slip ring induction motor Synchronous motor Any of the listed here Squirrel cage induction motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In selenium rectifiers efficiencies ranging from ______ to ______ percent are attainable 30, 60 40, 50 75, 85 20, 30 30, 60 40, 50 75, 85 20, 30 ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a glass bulb mercury arc rectifier the maximum current rating is restricted to 1500 A 2000 A 200 A 500 A 1500 A 2000 A 200 A 500 A ANSWER DOWNLOAD EXAMIANS APP
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