Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as R = ρ × ( l / A). J = σE. J = E / σ. V = IR. R = ρ × ( l / A). J = σE. J = E / σ. V = IR. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic vector potential is given by the expression A = (- cos x) (cos y) uz. The flux density at the origin is 2 ux. 0. – uy. – 2 ux. 2 ux. 0. – uy. – 2 ux. 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 exits between the conductor and the ground. The maximum electric stress occur at Midway between the conductor and ground. The lower surface of the conductor. The upper surface of the conductor. The ground surface. Midway between the conductor and ground. The lower surface of the conductor. The upper surface of the conductor. The ground surface. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The coils having self inductance of 10 mH and 15 mH have an effective inductance of 40 mH, when connected in series aiding. What will be the equivalent inductance if we connect then in series opposing? 5 mH. 20 mH. 10 mH. 0 mH. 5 mH. 20 mH. 10 mH. 0 mH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The static electric field in a conductor is Zero Unity Infinity None of these Zero Unity Infinity None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic field required to reduce the residual magnetism to zero is called Coercivity. Hysteresis. Saturation magnetism. Retentivity. Coercivity. Hysteresis. Saturation magnetism. Retentivity. ANSWER DOWNLOAD EXAMIANS APP
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