In a circular waveguide, the dominant mode is

Find the ratio of the refractive index of medium 1 to medium 2 when the Brewster angle is 50°.

If we move a charge once around an equipotential path, the work done by the charge is

Which of the following is not correct?

Find the electric field intensity when the velocity of the field is 18 m/s and the magnetic flux density is 8.76 units.

A wave travelling through two media have intrinsic impedances of 8.4 and 3.2 respectively. Calculate the transmission coefficient.

Sparking at the commutator of a D.C. motor may result in

When a dielectric material is introduced between the plates of a charged capacitor, the electric field between the plates:

A long solenoid has 200 turns per cm and carries a current I. The magnetic field at its center is 6.28×10-² Wb/m². Another long solenoid has 100 turns per cm and it carries a current I/3. The value of the magnetic field at its center is

Assertion: Large number of channels can be allocated in the microwave frequency range.

Reason: This is due to the increased bandwidth available in the microwave frequency range.