Electromagnetic Field Theory The main disadvantage of the two-hole directional coupler is Poor directivity Narrow bandwidth Low directional coupling High standing wave ratio Poor directivity Narrow bandwidth Low directional coupling High standing wave ratio ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following can induce the maximum induced voltage ? 20 amp dc. 1 amp dc. 1 amp 1 Hz. 1 amp 100 Hz. 20 amp dc. 1 amp dc. 1 amp 1 Hz. 1 amp 100 Hz. 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 smaller sphere will have zero potential. larger sphere will have smalled potential. larger sphere will have greater potential. both of sphere will have same potential. smaller sphere will have zero potential. larger sphere will have smalled potential. larger sphere will have greater potential. both of sphere will have same potential. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following will increase the antenna radiation efficiency? Providing insulation on conductor Use of larger section of conductor Any of the above Top loading of antenna Providing insulation on conductor Use of larger section of conductor Any of the above Top loading of antenna 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. n. k = 0. n × k = 0. n = K. n = - k. n. k = 0. n × k = 0. n = K. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Electric field strength of charge Decrease with distance. Increase square distance. Increase distance. Decrease with square distance. Decrease with distance. Increase square distance. Increase distance. Decrease with square distance. ANSWER DOWNLOAD EXAMIANS APP
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