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 A loop antenna is a commonly used for Radar Satellite communication All of these Direction finding Radar Satellite communication All of these Direction finding ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An electric dipole of moment P is placed in front of a ground sphere. The change induced on the surface of the sphere is (Assume radius of sphere = R and distance from dipole to centre of sphere = d) Zero. PR/d. PR 2/d3. PR/d2. Zero. PR/d. PR 2/d3. PR/d2. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A long straight wire carries a current I = 10A. At what distance is the magnetic field H = 1A/m? 1.39 m. 1.29 m. 1.19 m. 1.59 m. 1.39 m. 1.29 m. 1.19 m. 1.59 m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following statement regarding waveguides is incorrect? At waveguide can be coupled to a coaxial cable At frequencies below the cut off value the wave progresses across the waveguide after total reflections Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves Waveguides can handle large power at UHF and microwaves At waveguide can be coupled to a coaxial cable At frequencies below the cut off value the wave progresses across the waveguide after total reflections Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves Waveguides can handle large power at UHF and microwaves ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A circular loop has its radius increasing at a rate of 2 m/s. The loop placed perpendicular to a constant magnetic field of 0.5 wb/m2. When the radius of the loop is 4 m. the emf induced in the will be 0.8 π V. 8 π V. 0.4 π V. Zero. 0.8 π V. 8 π V. 0.4 π V. Zero. ANSWER DOWNLOAD EXAMIANS APP
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