Electromagnetic Field Theory In case of antenna the ratio of the power radiated in the desired direction to the power radiated in the opposite direction is known as Front to back ratio Transmission efficiency None of these Loss coefficient Front to back ratio Transmission efficiency None of these Loss coefficient ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic vector potential due to a single conductor carrying current is infinite. none of tha above. finite. zero. infinite. none of tha above. finite. zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The divergence of a vector is a scalar, while the curl of a vector is another Scalar None of these Vector Unit vector Scalar None of these Vector Unit vector ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The virtual height of an ionospheric layer is __________ true height Equal to Less than No relation Higher than Equal to Less than No relation Higher than ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere 3 Qr/(4 π εo R3). Q/(4 π εo r3). QR/(4π εo r3). Qr/(4 π εo R3). 3 Qr/(4 π εo R3). Q/(4 π εo r3). QR/(4π εo r3). Qr/(4 π εo R3). ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exits between the conductor and the ground. The maximum electric stress occur at The lower surface of the conductor. The upper surface of the conductor. The ground surface. Midway between the conductor and ground. The lower surface of the conductor. The upper surface of the conductor. The ground surface. Midway between the conductor and ground. ANSWER DOWNLOAD EXAMIANS APP
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