Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying a current at 10 amp, is 0.15 joule. 1.15 joule. 0.015 joule. 0.015 joule. 0.15 joule. 1.15 joule. 0.015 joule. 0.015 joule. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The frequency of the power wave associated with an electromagnetic wave having field as E = e-z/δ cos(ω - zδ) is given by ω. ω/4π. ω/2π. ω / π. ω. ω/4π. ω/2π. ω / π. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In above problem, if the inductance L1 and L2 in series aiding with 30 mH mutual inductance, then total inductance will be 100 mH. 50 mH. 150 mH. 200 mH. 100 mH. 50 mH. 150 mH. 200 mH. 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 40π coulombs. 10π coulombs. none of these. 80π coulombs. 40π coulombs. 10π coulombs. none of these. 80π coulombs. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then n × k = 0. n. k = 0. n = - k. n = K. n × k = 0. n. k = 0. n = - k. n = K. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two spheres of radius r1 and r2 are connected by a conducting wire. Each of the spheres has been given a charge Q. Now both of sphere will have same potential. larger sphere will have greater potential. smaller sphere will have zero potential. larger sphere will have smalled potential. both of sphere will have same potential. larger sphere will have greater potential. smaller sphere will have zero potential. larger sphere will have smalled potential. ANSWER DOWNLOAD EXAMIANS APP
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