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 10π coulombs. none of these. 40π coulombs. 80π coulombs. 10π coulombs. none of these. 40π coulombs. 80π coulombs. 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. 1.19 m. 1.29 m. 1.59 m. 1.39 m. 1.19 m. 1.29 m. 1.59 m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For a linear electromagnetic circuit, which of the following statement is true? Field energy is equal to the co-energy. Field energy is greater than the co-energy. Field energy is lesser than the co-energy. Co-energy is zero. Field energy is equal to the co-energy. Field energy is greater than the co-energy. Field energy is lesser than the co-energy. Co-energy is zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The effective reactance of an inductive coil remains same irrespective of the frequency. increases because of stray capacitance as the frequency increases. decreases because of stray capacitance as the frequency increases. none of these. remains same irrespective of the frequency. increases because of stray capacitance as the frequency increases. decreases because of stray capacitance as the frequency increases. none of these. 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 Transmission efficiency Front to back ratio None of these Loss coefficient Transmission efficiency Front to back ratio None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In H-plane metal plate lens the travelling wave front is Totally retarded Accelerated Retarded Neither accelerated nor retarded Totally retarded Accelerated Retarded Neither accelerated nor retarded ANSWER DOWNLOAD EXAMIANS APP
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