Electrical Machines If B is flux density, l the length of the conductor and v the velocity of the conductor, then emf is given by Blv. Bl2v. Blv2. Bl2v2. Blv. Bl2v. Blv2. Bl2v2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following generators are used in arc welding? differential compound generators series generators shunt generators cumulative compound generators differential compound generators series generators shunt generators cumulative compound generators ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called cogging. crawling. resonance. harmonics. cogging. crawling. resonance. harmonics. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the armature windings are placed on the rotor because of the necessity for electromechanical energy conversion generation of voltage development of torque commutation electromechanical energy conversion generation of voltage development of torque commutation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 500 V, 120 KW, 50 Hz, star connected synchronous motor operating at 0.8 power factor leading has full load efficiency of 91%. The armature resistance is equal to 0.08Ω. The magnitude of armature current is nearly equal to 190 A. 173 A. 240 A. 127 A. 190 A. 173 A. 240 A. 127 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor used in hair dryers? Synchronous motors. Cage induction motor. Split phase IM. Shaded pole IM. Synchronous motors. Cage induction motor. Split phase IM. Shaded pole IM. ANSWER DOWNLOAD EXAMIANS APP
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