Electromagnetic Field Theory The power gain of a half-wave dipole with respect to an isotropic radiator is 6 db 4.15 db 3 db 2.15 db 6 db 4.15 db 3 db 2.15 db 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 0. – uy. 2 ux. – 2 ux. 0. – uy. 2 ux. – 2 ux. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Materials subjected to rapid reversals of magnetism should have low permeability. high permeability. low hysteresis loss. both a and b. low permeability. high permeability. low hysteresis loss. both a and b. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The electrical field strength at a distance point A due to a point charge +q, located at the origin, is 100 µl v/m. If the point charge is now enclosed by a perfectly conducting metal sheet sphere whose centre is at origin, A, outside the sphere, becomes - 100 μ v/m. 100 μ v/m. None of above. 0. - 100 μ v/m. 100 μ v/m. None of above. 0. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then n × k = 0. n. k = 0. n = - k. n = K. n × k = 0. n. k = 0. n = - k. n = K. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of all flux from the current in coil 1 links with coil 2, the coefficient of coupling will be Zero. 0.5. 2.0. 1.0. Zero. 0.5. 2.0. 1.0. ANSWER DOWNLOAD EXAMIANS APP
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