Electromagnetic Field Theory An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed will be 200 V. 1800 V. 900 V. 0 V. 200 V. 1800 V. 900 V. 0 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an impedance smith chart, a clockwise movement along a constant resistance circle gives rise to An increase in the value of reactance Decrease in the value of reactance No change in the reactance value No change in the impedance value An increase in the value of reactance Decrease in the value of reactance No change in the reactance value No change in the impedance value ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will decrease. initially increase and then decrease. remain the same. increase. decrease. initially increase and then decrease. remain the same. increase. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A voltage waveform V(t) = 12t2 is applied across a 1H inductor for t = 0, with initial current through it being zero. The current through the inductor for t = 0 is given by 12t3. 24t. 4t3. 12t. 12t3. 24t. 4t3. 12t. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Fleming's right hand rule may be applied to an electric generator to find out the direction of induced emf. magnetic field. rotor rotation. None of these induced emf. magnetic field. rotor rotation. None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A conductor of length 1 metre moves at right angles to magnetic field of flux density 1 Wb/m2 with a velocity of 25 m/s. The induced emf in the conductor will be 100 V. 25 V. 75 V. 50 V. 100 V. 25 V. 75 V. 50 V. ANSWER DOWNLOAD EXAMIANS APP
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