Electromagnetic Field Theory - Study Mode
[#86] Who developed the concept of time varying electric field producing a magnetic field?
Correct Answer
(B) Faraday
[#87] Electromagnetic waves are produced by
Correct Answer
(C) An accelerating charge
[#88] The characteristic impedance of a cable is about
Correct Answer
(C) 50
[#89] The VSWR of a microwave unit is 1.5, the return loss is:
Correct Answer
(A) 14 dB
[#90] A medium is divided into regions I and II about x = 0 plane, as shown in the figure below. An electromagnetic wave with electric field $${overrightarrow E _1} = 4{{hat a}_x} + 3{{hat a}_y} + 5{{hat a}_z}$$ xa0 xa0 is incident normally on the interface from region-I. The electric field $${overrightarrow E _2}$$xa0in region-II at the interface is
Correct Answer
(C) $$3{{hat a}_x} + 3{{hat a}_y} + 5{{hat a}_z}$$