Electrical Machines A DC series motor is accidentally connected to single phase ac supply voltage. The torque produced will be pulsating and unidirectional steady and unidirectional None of these oscillating pulsating and unidirectional steady and unidirectional None of these oscillating ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, the frequency of a voltage at the secondary is greater than the primary. equal to primary. any of the above. less than primary. greater than the primary. equal to primary. any of the above. less than primary. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator, when driven without any excitation, showed an open circuit voltage of 12 V. When the field winding was excited, the voltage dropped to zero. It happened because there was a break in the armature circuit field winding was wrongly connected field resistance was higher than critical resistance there was no residual magnetism in the field circuit there was a break in the armature circuit field winding was wrongly connected field resistance was higher than critical resistance there was no residual magnetism in the field circuit ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor drawing an armature current of Ia is operating under saturated magnetic conditions. The torque developed in the motor is proportional to 1/Ia I/Ia2 Ia Ia2 1/Ia I/Ia2 Ia Ia2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machines internal characteristics are plotted between Vt vs load current Eg vs Ia Vt vs Ia Eg vs load current Vt vs load current Eg vs Ia Vt vs Ia Eg vs load current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The use of higher flux density in the transformer design increases the weigh per KVA has no relation with the weight of transformer None of these reduces the weigh per KVA increases the weigh per KVA has no relation with the weight of transformer None of these reduces the weigh per KVA ANSWER DOWNLOAD EXAMIANS APP
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