Explore topic-wise MCQs in Electromagnetic Theory.

This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory knowledge and support exam preparation. Choose a topic below to get started.

1.

CALCULATE_THE_SKIN_DEPTH_OF_A_MATERIAL_WITH_ATTENUATION_CONSTANT_OF_2_UNITS.?$

A. 2
B. 1
C. 0.5
D. 4
Answer» D. 4
2.

An example for lossless propagation is$

A. Dielectric waveguide propagation
B. Conductor propagation
C. Cavity resonator propagation
D. It is not possible
Answer» E.
3.

Calculate_the_phase_constant_of_a_wave_with_skin_depth_of_2.5_units.$

A. 5/2
B. 5
C. 2
D. 2/5
Answer» E.
4.

Skin_depth_phenomenon_is_found_in_which_materials?

A. Insulators
B. Dielectrics
C. Conductors
D. Semiconductors
Answer» D. Semiconductors
5.

The intrinsic impedance is the ratio of square root o?

A. Permittivity to permeability
B. Permeability to permittivity
C. Phase constant to wavelength
D. Wavelength to phase constant
Answer» C. Phase constant to wavelength
6.

In lossy dielectric, the phase difference between the electric field E and the magnetic field H is

A. 90
B. 60
C. 45
D. 0
Answer» E.
7.

Which of the following is the correct relation between wavelength and the phase constant of a wave?

A. Phase constant = 2π/wavelength
B. Phase constant = 2π x wavelength
C. Phase constant = 1/(2π x wavelength)
D. Phase constant = wavelength/2π
Answer» B. Phase constant = 2‚âà√¨‚àö√ë x wavelength
8.

Calculate the velocity of a wave with frequency 2 x109 rad/s and phase constant of 4 x 108 units.

A. 0.5
B. 5
C. 0.2
D. 2
Answer» C. 0.2
9.

For a lossless dielectric, the attenuation will be

A. 1
B. 0
C. -1
D. Infinity
Answer» C. -1
10.

Calculate the phase constant of a wave with frequency 12 rad/s and velocity 3√ó108 m/s(in 10-8 order)$

A. 0.5
B. 72
C. 4
D. 36
Answer» D. 36
11.

For a perfect dielectric, which parameter will be zero?

A. Conductivity
B. Frequency
C. Permittivity
D. Permeability
Answer» B. Frequency
12.

For a dielectric, the condition to be satisfied is

A. σ/ωε > 1
B. σ/ωε < 1
C. σ = ωε
D. ωε = 1
Answer» C. ‚âà√¨‚àö√¢ = ‚âà√¨‚àö¬¢‚âà√≠¬¨¬µ