Electromagnetic Field Theory In a lossless medium the intrinsic impedance η = 60π and μr = 1. The relative dielectric constant εr shall be 1. 2. 8. 4. 1. 2. 8. 4. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The property of the coil by which a counter emf is induced in it when the current through the coil changes is known as mutual inductance. series aiding inductance. self inductance. capacitance. mutual inductance. series aiding inductance. self inductance. capacitance. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the unit of magnetic charge Ampere. Ampere meter. Coulomb. Ampere-meter square. Ampere. Ampere meter. Coulomb. Ampere-meter square. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A metal sphere with 1 m radius and a surface charge density of 10 coulombs/m2 is enclosed in a cube of 10 m side. The total outward electric displacement normal to the surface of the cube is None of above. 10 C. 5 C. 40π C. None of above. 10 C. 5 C. 40π C. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A rectangular loop in the x – z plane bounded by the lines x = 0, x = a, z = 0 and z = b is in a time varying magnetic field is given by B = B0 cosωt + ay. Where B0 is constant, ω is angular frequency and ay unit vector in the y direction. Now the emf induced in the loop is given by Bo ω sinω t. abω Bo sinω t. Zero. ab Bo cosω t. Bo ω sinω t. abω Bo sinω t. Zero. ab Bo cosω t. ANSWER DOWNLOAD EXAMIANS APP
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 None of these Transmission efficiency Loss coefficient Front to back ratio None of these Transmission efficiency Loss coefficient ANSWER DOWNLOAD EXAMIANS APP
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