Electromagnetic Field Theory The developed electromagnetic force and or torque in electromechanical energy conversion system act in a direction that tends to decrease the stored energy at constant flux. to decrease the stored energy at constant mmf. to decrease the co-energy at constant mmf. to increase the stored energy at constant flux. to decrease the stored energy at constant flux. to decrease the stored energy at constant mmf. to decrease the co-energy at constant mmf. to increase the stored energy at constant flux. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main disadvantage of the two-hole directional coupler is Poor directivity Low directional coupling High standing wave ratio Narrow bandwidth Poor directivity Low directional coupling High standing wave ratio Narrow bandwidth ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of surface waves the field strength at a point is directly proportional to Current of the antenna Antenna height Distance of the point from the antenna Wave frequency Current of the antenna Antenna height Distance of the point from the antenna Wave frequency ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Find the length of a conductor which is moving with a velocity 0.4m/s in a magnetic field of 8T, inducing an emf of 20V. 0.5m. 0.6m. 5.25m. 6.25m. 0.5m. 0.6m. 5.25m. 6.25m. 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. 80π coulombs. 40π coulombs. 10π coulombs. none of these. 80π coulombs. 40π coulombs. 10π coulombs. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The attenuation in waveguide above to cut off frequency Very low Infinite Very high Zero Very low Infinite Very high Zero ANSWER DOWNLOAD EXAMIANS APP
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