Electromagnetic Field Theory A plane wave in a homogeneous medium has E = 50 sin(108t + 2z) uy V/m. What is the direction of wave propagation – y direction. y direction. z direction. – z direction. – y direction. y direction. z direction. – z direction. ANSWER DOWNLOAD EXAMIANS APP
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 0.015 joule. 0.15 joule. 1.15 joule. 0.015 joule. 0.015 joule. 0.15 joule. 1.15 joule. 0.015 joule. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The attenuation in waveguide above to cut off frequency Very low Very high Infinite Zero Very low Very high Infinite Zero ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An electric field on a place described by its potential V = 20 (r -1 + r-2) where r is the distance from the source. The field is due to A monopole. Both of A and B. A quardra pole. A dipole. A monopole. Both of A and B. A quardra pole. A dipole. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The hysteresis loop of a magnetic material has an area of 5 cm2 with the scale given as 1 cm = 2 AT and 1 cm = 50 mwb At 50 Hz; the total hysteresis loss is 50 W. 15 W. 20 W. 25 W. 50 W. 15 W. 20 W. 25 W. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of skin depth as 100 Hz in a material having μr = 1.0 and & σ = 3.60 × 107 s/m 4 mm. 10 mm. 8.4 mm. 2.4 mm. 4 mm. 10 mm. 8.4 mm. 2.4 mm. ANSWER DOWNLOAD EXAMIANS APP
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