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 Blv2. Blv. Bl2v. Bl2v2. Blv2. Blv. Bl2v. Bl2v2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the flux of DC motor approaches zero, its speed will remain unchanged. aprroach infinity. approach zero. between zero and infinity. remain unchanged. aprroach infinity. approach zero. between zero and infinity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 2 KVA transformer has iron loss of 150 W and full load copper loss of 250 W. The maximum efficiency of the transformer would occur when the total loss is 500 W 400W 250 W 300 W 500 W 400W 250 W 300 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing diverter resistance of a DC series motor causes increase in speed but armature currnet remains the same. increase in speed demanding more armature current. decrease in speed but armature current remains the same. decrease in speed demanding less armature current. increase in speed but armature currnet remains the same. increase in speed demanding more armature current. decrease in speed but armature current remains the same. decrease in speed demanding less armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature reaction mmf in a DC machines has a form of rectangular. trapezoidal. sinusoidal. triangular. rectangular. trapezoidal. sinusoidal. triangular. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series motor is efficiently suitable for low starting torque operation. none of these. high starting torque operation. constant speed operation. low starting torque operation. none of these. high starting torque operation. constant speed operation. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS