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 × 106. 2 × 108. 2 × 10-8. 2 × 10-6. 2 × 106. 2 × 108. 2 × 10-8. 2 × 10-6. ANSWER DOWNLOAD EXAMIANS APP
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 20 N. 3.75 N. 15 N. 7.5 N. 20 N. 3.75 N. 15 N. 7.5 N. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Between a hollow and solid metal sphere, charge reside on outer surface in hollow and throughout in solid None of above. on outer surface in hollow and throughout in solid. on outer surface in both. on outer surface in hollow and throughout in solid None of above. on outer surface in hollow and throughout in solid. on outer surface in both. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For a linear electromagnetic circuit, which of the following statement is true? Field energy is equal to the co-energy. Co-energy is zero. Field energy is greater than the co-energy. Field energy is lesser than the co-energy. Field energy is equal to the co-energy. Co-energy is zero. Field energy is greater than the co-energy. Field energy is lesser than the co-energy. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory According to maximum power transfer theorem, the maximum power is absorbed by one network from another network when None of these The impedance of one is the complex conjugate of the other The impedance of one of the networks is half that of the other The impedance of one is equal to that of the other None of these The impedance of one is the complex conjugate of the other The impedance of one of the networks is half that of the other The impedance of one is equal to that of the other ANSWER DOWNLOAD EXAMIANS APP
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 40π coulombs. none of these. 80π coulombs. 10π coulombs. 40π coulombs. none of these. 80π coulombs. 10π coulombs. ANSWER DOWNLOAD EXAMIANS APP
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