Electromagnetic Field Theory
A negative point charge q = - 40 nC is moving with velocity of 6 × 106 m/s in a direction specited by unit vector uy + 0.6 uz. Find the magnitude of force vector on the moving particle by the field B = 2 ux + 3 uy + 5 uz mT and E = 2 ux - 3 uy + 5 uz KV/m

 144 μN.
  1144 μN.
 1440 μN.
 244 μN.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
Which of the following statement regarding waveguides is incorrect?

Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves
At frequencies below the cut off value the wave progresses across the waveguide after total reflections
Waveguides can handle large power at UHF and microwaves
At waveguide can be coupled to a coaxial cable

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
The wave in wave guide has

Diminishing wavelength than in the free space
Larger wavelength than in the free space
Larger frequency than in the free space
Group velocity inversely proportional to wavelength

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electromagnetic Field Theory