Electrical Machines Two transformers with identical rating, are designed with flux densities of 1.2 and 1.4 Wb / m2 respectively. The weight of first transformer per kVA is none of these. equal to that of second transformer. less than that of second transformer. more than that of second transformer. none of these. equal to that of second transformer. less than that of second transformer. more than that of second transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a compensated DC series motor, the compensating winding is provided In parallel with the field winding. In series with the armature winding. In parallel with the armature winding. As a separate unit. In parallel with the field winding. In series with the armature winding. In parallel with the armature winding. As a separate unit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The mmf produced by rotor currents of a 3 - Φ induction motor rotates at synchronous speed with respect to rotor. rotates at slip speed with respect to stator mmf. is at standstill with respect to stator mmf. rotates at the speed of rotor in the air gap. rotates at synchronous speed with respect to rotor. rotates at slip speed with respect to stator mmf. is at standstill with respect to stator mmf. rotates at the speed of rotor in the air gap. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected in series either of these depending on the design of the motor in parallel through inductive coupling in series either of these depending on the design of the motor in parallel through inductive coupling ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At slip s = 1 torque developed in machine is maximum torque. electromagnetic torque. starting torque. none. maximum torque. electromagnetic torque. starting torque. none. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor armature conductor of length 0.5 m is exposed to a flux density of 4 Wb / m2. Calculate the force experienced by the conductor, when the armature current is 5 Amp? 15 N. None of these. 20 N. Can't be determined. 15 N. None of these. 20 N. Can't be determined. ANSWER DOWNLOAD EXAMIANS APP
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