Electromagnetic Field Theory Two straight parallel conductors carry equal currents in opposite direction. The force between them is none of above. repulsive. zero. attractive. none of above. repulsive. zero. attractive. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The divergence of a vector is a scalar, while the curl of a vector is another Scalar None of these Unit vector Vector Scalar None of these Unit vector Vector ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The critical frequency of ‘F’ layer is greater than 30 MHz. True False True False ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetostriction is a phenomenon of generation of magnetism in electrical conductors. generation of electricity in ferromagnetic materials. change in permeability of ferromagnetic materials during magnetism. change in physical dimensions of ferromagnetic materials during magnetism. generation of magnetism in electrical conductors. generation of electricity in ferromagnetic materials. change in permeability of ferromagnetic materials during magnetism. change in physical dimensions of ferromagnetic materials during magnetism. 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 increase. decrease. remain the same. initially increase and then decrease. increase. decrease. remain the same. initially increase and then decrease. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Infinity. Depends on strength of current element. Zero. Unity. Infinity. Depends on strength of current element. Zero. Unity. ANSWER DOWNLOAD EXAMIANS APP
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