Electromagnetic Field Theory A waveguide operated below cut off frequency can be used as An isolator Phase shifter An attenuator None An isolator Phase shifter An attenuator None ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The developed electromagnetic force and or torque in electromechanical energy conversion system act in a direction that tends to decrease the stored energy at constant flux. to decrease the stored energy at constant mmf. to increase the stored energy at constant flux. to decrease the co-energy at constant mmf. to decrease the stored energy at constant flux. to decrease the stored energy at constant mmf. to increase the stored energy at constant flux. to decrease the co-energy at constant mmf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The heating time constant of an electrical machine gives an indication of its overload capacity. rating. cooling. short time rating. overload capacity. rating. cooling. short time rating. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Find the length of a conductor which is moving with a velocity 0.4m/s in a magnetic field of 8T, inducing an emf of 20V. 5.25m. 0.5m. 6.25m. 0.6m. 5.25m. 0.5m. 6.25m. 0.6m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A conductor of length 100 cm moves at right angles to a magnetic field of flux density 1.5 Wb/m2 with a velocity of 50 m/s. The induced emf in the conductor will be 75 V. 50 V. 37.5 V. 150 V. 75 V. 50 V. 37.5 V. 150 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For an inductor, current is proportional to magnetic field. voltage across the inductor. both (A) and (B). none of them. magnetic field. voltage across the inductor. both (A) and (B). none of them. ANSWER DOWNLOAD EXAMIANS APP
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