Electromagnetic Field Theory A magnetic circuit requires 800 AT to produce a certain quantity of flux in a magnetic circuit. If its excitation coil has 100 turns and 5 Ohm resistance, the voltage to be applied in exciting coil is 8 V. 40 V. 80 V. 60 V. 8 V. 40 V. 80 V. 60 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In free space E (z, t) = 103 sin(ωt - βz) uy v/m. What is the value of H (z, t) (103/377) cos(ωt - β z)(-ux) A/m. (103/377) sin(ωt - β z)(-ux) A/m. (103/377) sin(ωt - β z)(ux) A/m. None of above. (103/377) cos(ωt - β z)(-ux) A/m. (103/377) sin(ωt - β z)(-ux) A/m. (103/377) sin(ωt - β z)(ux) A/m. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A sphere of radius with a uniform charge density ρv C/m3 shall have electric flux density at radius “r = a” equal to ρv/3 C/m2. aρv C/m2. aρv/4 C/m2. aρv/3 C/m2. ρv/3 C/m2. aρv C/m2. aρv/4 C/m2. aρv/3 C/m2. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will decrease. remain the same. initially increase and then decrease. increase. decrease. remain the same. initially increase and then decrease. increase. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A pure inductor when connected across 220 V, 50 Hz supply consumes 100 W. From the above statement it can be concluded that the inductor is non linear. the inductor has ferrite core. the above statement is false. the inductor is made of thin wire. the inductor is non linear. the inductor has ferrite core. the above statement is false. the inductor is made of thin wire. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Coulombs law for the force between electric charges most closely resembles with Newtons law of motion. Law of conservation of energy. Newtons law of gravitation. Gauss theorem. Newtons law of motion. Law of conservation of energy. Newtons law of gravitation. Gauss theorem. ANSWER DOWNLOAD EXAMIANS APP
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