Electromagnetic Field Theory Ohm’s law in point from field theory can be expressed as V = IR. J = E / σ. R = ρ × ( l / A). J = σE. V = IR. J = E / σ. R = ρ × ( l / A). J = σE. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The wave in wave guide has Group velocity inversely proportional to wavelength Larger wavelength than in the free space Larger frequency than in the free space Diminishing wavelength than in the free space Group velocity inversely proportional to wavelength Larger wavelength than in the free space Larger frequency than in the free space Diminishing wavelength than in the free space ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When a conductor moves in the field, so that it makes an angle 8 with the lines of flux, the force F is given as : F = Bl sin2 0. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is static and the field is varying then emf will be induced. This principle is called static induced emf. dynamically induced emf. virtually induced emf. none of these static induced emf. dynamically induced emf. virtually induced emf. none of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory How much current must flow in a loop of radius 1m to produce a magnetic field of 1 mA/m? 1.5 mA. 1mA. 2.5 mA. 2 mA. 1.5 mA. 1mA. 2.5 mA. 2 mA. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A pure inductor is connected across a voltage source. Find the active power drawn by the inductor? maximum either 1 or 2 0 None of these maximum either 1 or 2 0 None of these ANSWER DOWNLOAD EXAMIANS APP
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