Electromagnetic Field Theory Two infinite parallel metal plates are charged with equal surface charge density of the same polarity. The electric field in the gap between the plates is same as that produced by one plate. zero. double the field produced by one plate. dependent on coordinates of field points. same as that produced by one plate. zero. double the field produced by one plate. dependent on coordinates of field points. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The two windings of a transformer have an inductor of 2 H each. If mutual inductor between them is also 2 H, then it is a perfect transformer. turns ratio of the transformer is also two. none of these. transformer is an ideal transformer. it is a perfect transformer. turns ratio of the transformer is also two. none of these. transformer is an ideal transformer. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following can induce the maximum induced voltage ? 1 amp 1 Hz. 20 amp dc. 1 amp 100 Hz. 1 amp dc. 1 amp 1 Hz. 20 amp dc. 1 amp 100 Hz. 1 amp dc. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A loop is rotating about x-axis in a magnetic field, B = BO cos(ω + φ) ay. The voltage in the loop is Due to rotating only. Due to both rotating and transformer action. Due to transformer only. Zero. Due to rotating only. Due to both rotating and transformer action. Due to transformer only. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The attenuation in waveguide above to cut off frequency Very high Zero Very low Infinite Very high Zero Very low Infinite ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils have inductances L1 = 1200 mH and L2 = 800 mH. They are connected in such a way that flux in the two coils aid each other and inductance is measured to be 2500 mH, then Mutual inductance between the coils is ___________ mH. 225. 250. 145. 150. 225. 250. 145. 150. ANSWER DOWNLOAD EXAMIANS APP
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