Electromagnetic Field Theory The minimum height of outer atmosphere is 200 km 400 km 100 km 150 km 200 km 400 km 100 km 150 km ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A Yagi antenna has a driven antenna With one or more directors With a reflector and one or more directors Only With a reflector With one or more directors With a reflector and one or more directors Only With a reflector ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A copper disc is rotated rapidly below a freely suspended magnetic needle. The magnetic needle starts rotating with velocity equal to that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc but in opposite direction. less than that of disc and in the same direction. equal to that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc but in opposite direction. less than that of disc and in the same direction. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal __________ . Reflection Refraction Transmission None of these Reflection Refraction Transmission None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A magnetic vector potential is given by the expression A = (- cos x) (cos y) uz. The flux density at the origin is – uy. 0. 2 ux. – 2 ux. – uy. 0. 2 ux. – 2 ux. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Mutual inductance between two magnetically coupled coils depends on cross sectional area of their common core. all of above. the number of their turns. permeability of core. cross sectional area of their common core. all of above. the number of their turns. permeability of core. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS