Electromagnetic Field Theory
A metal surface with 1 meter radius and surface charge density of 20 coulombs / m2 is enclosed in a 10 m side cube. The total outward electric displacement normal to the surface of the cube is

 none of these.
 10π coulombs.
 80π coulombs.
 40π coulombs.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include

Antenna replacement and feed correction
Polarization shifting and code diversity
Amplitude timing and phase correction
Path diversity and frequency diversity

ANSWER DOWNLOAD EXAMIANS APP