Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as J = E / σ. R = ρ × ( l / A). V = IR. J = σE. J = E / σ. R = ρ × ( l / A). V = IR. J = σE. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two straight parallel conductors carry equal currents in opposite direction. The force between them is repulsive. attractive. zero. none of above. repulsive. attractive. zero. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The heating time constant of an electrical machine gives an indication of its overload capacity. short time rating. cooling. rating. overload capacity. short time rating. cooling. rating. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which antenna is a wideband antenna? Marconi antenna Folded dipole None of these Hertz antenna Marconi antenna Folded dipole None of these Hertz antenna ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A circular loop has its radius increasing at a rate of 2 m/s. The loop placed perpendicular to a constant magnetic field of 0.5 wb/m2. When the radius of the loop is 4 m. the emf induced in the will be 0.4 π V. 8 π V. 0.8 π V. Zero. 0.4 π V. 8 π V. 0.8 π V. Zero. 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. on outer surface in both. None of above. on outer surface in hollow and throughout in solid on outer surface in hollow and throughout in solid. on outer surface in both. None of above. on outer surface in hollow and throughout in solid ANSWER DOWNLOAD EXAMIANS APP
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