Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Unity. Zero. Infinity. Depends on strength of current element. Unity. Zero. Infinity. Depends on strength of current element. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The Kirchhoff’s current law is implict in expression Divergence of B = 0. Surface integral of (j.ds) = 0. Divergence of D = ρv. Curl of H = J + (δ D)/(δ t). Divergence of B = 0. Surface integral of (j.ds) = 0. Divergence of D = ρv. Curl of H = J + (δ D)/(δ t). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Coulombs law for the force between electric charges most closely resembles with Newtons law of motion. Newtons law of gravitation. Law of conservation of energy. Gauss theorem. Newtons law of motion. Newtons law of gravitation. Law of conservation of energy. Gauss theorem. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Cork Screw rule is used to find direction of magnetic field. direction of emf. direction of current. direction of electric field. direction of magnetic field. direction of emf. direction of current. direction of electric field. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The wave in wave guide has Group velocity inversely proportional to wavelength Diminishing wavelength than in the free space Larger wavelength than in the free space Larger frequency than in the free space Group velocity inversely proportional to wavelength Diminishing wavelength than in the free space Larger wavelength than in the free space Larger frequency than in the free space ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following impedance inversion is obtained? Balun transformer A quarter wave line Short-circuited stub A half wave line Balun transformer A quarter wave line Short-circuited stub A half wave line ANSWER DOWNLOAD EXAMIANS APP
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