Electromagnetic Field Theory A metal surface with 1 meter radius and surface charge density of 20 coulombs / m2 is enclosed in a 10 m side cube. The total outward electric displacement normal to the surface of the cube is 80π coulombs. 40π coulombs. 10π coulombs. none of these. 80π coulombs. 40π coulombs. 10π coulombs. none of these. 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 initially increase and then decrease. remain the same. decrease. increase. initially increase and then decrease. remain the same. decrease. increase. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A coil of 300 turns is wound on a non magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The inductance of the coil corresponding to a magnetizing current of 6 A will be 1.1304 μH. 37.68 μH. 113.04 μH. 3.768 μH. 1.1304 μH. 37.68 μH. 113.04 μH. 3.768 μH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic material has a total flux B of 80 micro Wb with an mmf of 160 AT. The reluctance in ampere turn per weber is 2 × 10-8. 2 × 108. 2 × 106. 2 × 10-6. 2 × 10-8. 2 × 108. 2 × 106. 2 × 10-6. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A satellite that simply reflect back the signals from one region of the earth to the other region is known as Active satellite Passive satellite Geostationary satellite Orbiting satellite Active satellite Passive satellite Geostationary satellite Orbiting satellite ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic vector potential due to a single conductor carrying current is infinite. finite. zero. none of tha above. infinite. finite. zero. none of tha above. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS