Electromagnetic Field Theory In a lossless medium the intrinsic impedance η = 60π and μr = 1. The relative dielectric constant εr shall be 2. 8. 1. 4. 2. 8. 1. 4. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The Kirchhoff’s current law is implict in expression Surface integral of (j.ds) = 0. Divergence of D = ρv. Divergence of B = 0. Curl of H = J + (δ D)/(δ t). Surface integral of (j.ds) = 0. Divergence of D = ρv. Divergence of B = 0. Curl of H = J + (δ D)/(δ 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 Loss coefficient Front to back ratio Transmission efficiency None of these Loss coefficient Front to back ratio Transmission efficiency None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A metal surface with 1 meter radius and surface charge density of 20 coulombs / m2 is enclosed in a 10 m side cube. The total outward electric displacement normal to the surface of the cube is none of these. 40π coulombs. 80π coulombs. 10π coulombs. none of these. 40π coulombs. 80π coulombs. 10π coulombs. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be 20. 5. 50. 10. 20. 5. 50. 10. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is true for a purely inductive circuit ? Apparent power of the circuit is zero. Actual power of the circuit is zero. Reactive power of the circuit is zero. Any capacitance even if present in the circuit will not be charged. Apparent power of the circuit is zero. Actual power of the circuit is zero. Reactive power of the circuit is zero. Any capacitance even if present in the circuit will not be charged. ANSWER DOWNLOAD EXAMIANS APP
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