Electromagnetic Field Theory - Study Mode
[#231] Gauss theorem is expressed mathematically as:
Correct Answer
(B) $$oint {overrightarrow D .overrightarrow {dS} = q} $$
[#232] "The surface integral of curl of a vector field over an open surface equals the line integral of the vector field over the closed curve bounding the surface area" this is the statement of-
Correct Answer
(B) Stoke's theorem
[#233] A very reliable service has to be established between two points on earth separated by 1000 km. The band that will be used is
Correct Answer
(C) UHF
[#234] What is the magnitude of emf induced in a 200 turn coil with cross-sectional area of 0.16 m 2 , if the magnetic field through the coil changes from 0.10 Wb/m 2 to 0.50 Wb/m 2 at a uniform rate over a period of 0.02 seconds?
Correct Answer
(B) -640 V
[#235] The characteristic impedance of a lossless transmission line is given by
Correct Answer
(D) $$Z = sqrt {frac{L}{C}} $$