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 × 106. 2 × 108. 2 × 10-6. 2 × 10-8. 2 × 106. 2 × 108. 2 × 10-6. 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 upper surface of the conductor. midway between the conductor and ground. the ground surface. lower surface of the conductor. upper surface of the conductor. midway between the conductor and ground. the ground surface. lower surface of the conductor. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following statement is correct for divergence of electric and magnetic flux densities? It is zero for the electric flux density. These are zero for static densities but non zero for time varying densities. It is zero for the magnetic flux density. Both are zero. It is zero for the electric flux density. These are zero for static densities but non zero for time varying densities. It is zero for the magnetic flux density. Both are zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The force on a charge moving with velocity v under the influence of electric and magnetic fields is given by which one of the following q(E + V × B). q(E + B × V). q(E +V × H). q(H + V × E). q(E + V × B). q(E + B × V). q(E +V × H). q(H + V × E). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Skin depth is proportional to 1/√σ. Frequency. √(σ). Permeability. 1/√σ. Frequency. √(σ). Permeability. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The operation of electric generators and motors depend on the intraction between magnetic field and Commutator. Electric fields. Electric current. Copper conductors. Commutator. Electric fields. Electric current. Copper conductors. ANSWER DOWNLOAD EXAMIANS APP
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