This set consists of Advanced Electromagnetic Theory Questions and Answers. 1. In the design of a single mode step index optical fiber close to upper cut off, the single mode operation is NOT preserved if a) Radius as well as operating wavelength are halved b) Radius as well as operating wavelength are doubled c) Radius … Read more

## Tough Electromagnetic Theory Questions and Answers

This set consists of Tough Electromagnetic Theory Questions and Answers. 1. Copper behaves as a a) Conductor always b) Conductor or dielectric depending on the applied electric field strength c) Conductor or dielectric depending on the frequency d) Conductor or dielectric depending on the electric current density 2. In a good conductor the phase relation … Read more

## Tricky Electromagnetic Theory Questions and Answers

This set consists of Tricky Electromagnetic Theory Questions and Answers. 1. The tangential component of an electric field will be continuous in which boundary? a) Conductor-Conductor b) Conductor-Dielectric c) Dielectric-Dielectric d) Any boundary 2. The depth of penetration of a wave in a lossy dielectric increases with increasing a) Conductivity b) Permeability c) Wavelength d) … Read more

## Electromagnetic Theory Questions and Answers – Transients

This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Transients”. 1. The resonant circuit in a waveguide refers to the a) Tank circuit b) RC circuit c) Bridge circuit d) Attenuator circuit 2. When a waveguide is terminated, the mode of the guided termination will be a) zero b) non-zero c) … Read more

## Electromagnetic Theory Questions and Answers – Waveguide Current and Excitation

This set of Basic Electromagnetic Theory Questions and Answers focuses on “Waveguide Current and Excitation”. 1. The source voltage of a 75ohm transmission line is given by 150V. Find the load current. a) 0.5 b) 2 c) 4 d) 1 2. The guided terminations are used to a) Increase reflection b) Increase transmission c) Eliminate … Read more

## Electromagnetic Theory Questions and Answers – Phase and Group Velocity

This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Phase and Group Velocity”. 1. In a waveguide, which of the following condition is true always? a) phase velocity = c b) group velocity = c c) phase velocity > c d) phase velocity < c 2. The term cos θ is … Read more

## Electromagnetic Theory Questions and Answers – Transverse Electric Magnetic Waves(TEM)

This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Transverse Electric Magnetic Waves”. 1. In a transverse electric magnetic wave, which of the following will be true? a) E is transverse to H b) E is transverse to wave direction c) H is transverse to wave direction d) E and H … Read more

## Electromagnetic Theory Questions and Answers – Transverse Magnetic Waves(TM)

This set of Electromagnetic Theory Multiple Choice Questions & Answers (MCQs) focuses on “Transverse Magnetic Waves”. 1. In transverse magnetic waves, which of the following is true? a) E is parallel to H b) H is parallel to wave direction c) H is transverse to wave direction d) E is transverse to H 2. The … Read more

## Electromagnetic Theory Questions and Answers – Transverse Electric Waves(TE)

This set of Electromagnetic Theory Problems focuses on “Transverse Electric Waves(TE)”. 1. In transverse electric waves, which of the following is true? a) E is parallel to H b) E is parallel to wave direction c) E is transverse to wave direction d) H is transverse to wave direction 2. The dominant mode in rectangular … Read more