Electromagnetic Field Theory
A point charge in space is attracted towards a dielectric material because of the

 maximisation of electrostatic flux.
 dielectric hysteresis.
 phenomenon of dielectric polarisation.
 all of above.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
The wave in wave guide has

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

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
If an electric current carrying coil is placed in a uniform magnetic field in the direction of magnetic induction, then

 the net force is finite but torque is zero.
 the net force and torque are both finite.
 the net force is zero but torque is finite.
 the net force and torque on the coil are both zero.

ANSWER DOWNLOAD EXAMIANS APP