Electromagnetics [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 53 - 57 of 96

Access detailed explanations (illustrated with images and videos) to 1176 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 450.00 -OR-

How to register? Already Subscribed?

Question 53

Electromagnetics
Equations

Question

MCQ▾

The field in a rectangular waveguide of inner dimensions is given by

Where is a constant, a and b are the dimensions along the and the respectively. The mode of propagation in the waveguide is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 54

Electromagnetics
Equations

Question

MCQ▾

The phase velocity of an electrometric wave propagating in a hollow metallic rectangular waveguide in the mode is

Choices

Choice (4)Response

a.

Equal to its group velocity

b.

Less than velocity of light in free space

c.

Equal to the velocity of light in free space

d.

Greater than the velocity of light in free space

Question 55

Electromagnetics
Equations

Question

MCQ▾

The longitudinal component of the magnetic field inside an air filled rectangular waveguide made of a perfect electric conductor is given by the following expression

The cross – sectional dimensions of the waveguide are given as and . The mode of propagation inside the waveguide is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 56

Electromagnetics
Equations

Question

MCQ▾

The phase velocity for the mode in an air filled rectangular waveguide is

Choices

Choice (4)Response

a.

Less than c

b.

Equal to c

c.

Greater than c

d.

None of the above

Question 57

Electromagnetics
Equations

Question

MCQ▾

Indicate which one of the following modes do NOT exist in a rectangular resonant cavity

Choices

Choice (4)Response

a.

b.

c.

d.

Developed by: