Electromagnetic Field Theory The critical frequency of ‘F’ layer is greater than 30 MHz. False True False True ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When the phase velocity of an EM wave depends on frequency in any medium the phenomenon is called Polarisation Absorption Dispersion Scattering Polarisation Absorption Dispersion Scattering ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In a dielectric material an applied field in x direction Ex = 5 v/m gives a polarization of px = 3/10π ux nc/m2. The susceptibility of the material is 4.32. Zero. Infinity. 2.16. 4.32. Zero. Infinity. 2.16. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A negative point charge q = - 40 nC is moving with velocity of 6 × 106 m/s in a direction specited by unit vector uy + 0.6 uz. Find the magnitude of force vector on the moving particle by the field B = 2 ux + 3 uy + 5 uz mT and E = 2 ux - 3 uy + 5 uz KV/m 244 μN. 1144 μN. 1440 μN. 144 μN. 244 μN. 1144 μN. 1440 μN. 144 μN. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following represents ohms law J = σE V = RI All of these I = GV J = σE V = RI All of these I = GV 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 None of above. on outer surface in both. on outer surface in hollow and throughout in solid. on outer surface in hollow and throughout in solid None of above. on outer surface in both. on outer surface in hollow and throughout in solid. ANSWER DOWNLOAD EXAMIANS APP
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