Rectifiers and Converters In a three-phase mercury arc rectifiers each anode conducts for One-half a cycle One-fourth of a cycle Two-third of a cycle One-third of a cycle One-half a cycle One-fourth of 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 partly a.c. and partly d.c. None of the listed here d.c. only a.c. only partly a.c. and partly d.c. None of the listed here d.c. only a.c. only ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a phase-shift control method, the phase shift between anode and grid voltages can be achieved by means of Synchronous motor Synchronous generator Induction regulator Shunt motor Synchronous motor Synchronous generator Induction regulator Shunt motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The voltage drop at anode, in a mercury arc rectifier is due to energy spent in overcoming the electrostatic field self restoring property of mercury high ionization potential high temperature inside the rectifier energy spent in overcoming the electrostatic field self restoring property of mercury high ionization potential high temperature inside the rectifier ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The applications of selenium rectifiers are usually limited to potential of 100 V 30 V 10 V 20 V 100 V 30 V 10 V 20 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A synchronous converter can be started All of the listed here from D.C. side as D.C. motor from A.C. side as induction motor by means of a small auxiliary motor All of the listed here from D.C. side as D.C. motor from A.C. side as induction motor by means of a small auxiliary motor ANSWER DOWNLOAD EXAMIANS APP
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