Electromagnetic Field Theory A point pole has a strength of 4π × 10-4 weber. The force in newtons on a point pole of 4π × 1.5 × 10-4 weber placed at a distance of 10 cm from it will be 7.5 N. 15 N. 3.75 N. 20 N. 7.5 N. 15 N. 3.75 N. 20 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils have inductances L1 = 1200 mH and L2 = 800 mH. They are connected in such a way that flux in the two coils aid each other and inductance is measured to be 2500 mH, then Mutual inductance between the coils is ___________ mH. 225. 250. 145. 150. 225. 250. 145. 150. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The field at any point on the axis of a current carrying coil will be zero. perpendicular to the axis. at angle of 45° with the axis. parallel to axis. zero. perpendicular to the axis. at angle of 45° with the axis. parallel to axis. ANSWER DOWNLOAD EXAMIANS APP
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 0 V. 1800 V. 900 V. 200 V. 0 V. 1800 V. 900 V. 200 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main purpose of choke is to pass low frequencies. none of above. to block low frequencies. to pass high frequencies. to pass low frequencies. none of above. to block low frequencies. to pass high frequencies. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exists between the conductor and the ground. The maximum electric stress occurs at midway between the conductor and ground. upper surface of the conductor. lower surface of the conductor. the ground surface. midway between the conductor and ground. upper surface of the conductor. lower surface of the conductor. the ground surface. ANSWER DOWNLOAD EXAMIANS APP
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