Electromagnetic Field Theory A pure inductor when connected across 220 V, 50 Hz supply consumes 100 W. From the above statement it can be concluded that the inductor has ferrite core. the above statement is false. the inductor is made of thin wire. the inductor is non linear. the inductor has ferrite core. the above statement is false. the inductor is made of thin wire. the inductor is non linear. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Materials subjected to rapid reversals of magnetism should have low hysteresis loss. low permeability. both a and b. high permeability. low hysteresis loss. low permeability. both a and b. high permeability. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory How much current must flow in a loop of radius 1m to produce a magnetic field of 1 mA/m? 1.5 mA. 1mA. 2 mA. 2.5 mA. 1.5 mA. 1mA. 2 mA. 2.5 mA. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Midway between two equal and similar charges, a third equal and similar charge is placed, then this third charge will be in unstable equilibrium. remain in stable equilibrium. not be equilibrium. will move out of the field of influence of two charges. be in unstable equilibrium. remain in stable equilibrium. not be equilibrium. will move out of the field of influence of two charges. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is 450. 600. 150. 300. 450. 600. 150. 300. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then n. k = 0. n = K. n × k = 0. n = - k. n. k = 0. n = K. n × k = 0. n = - k. ANSWER DOWNLOAD EXAMIANS APP
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