Electromagnetics [GATE (Graduate Aptitude Test in Engineering) Electronics & CE (EC)]: Questions 79 - 81 of 129
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Question 79
Appeared in Year: 2017
Question MCQ▾
Two conducting spheres and of radii a and respectively, are placed apart and connected by a long, thin conducting wire, as shown in the figure.
For some charge placed on this structure, the potential and surface electric field on are and , and that on are and respectively. Then, which of the following is CORRECT?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 80
Appeared in Year: 2016
Question MCQ▾
Let the electric field vector of a plane electromagnetic wave propagating in a homogenous medium be expressed as where the propagating constant is a function of the angular frequency . Assume that and are known and are real. From the information available, which one of the following Cannot be determined?
Choices
Choice (4) | Response | |
---|---|---|
a. | The power flux through the plane. | |
b. | The phase velocity of the wave. | |
c. | The group velocity of the wave. | |
d. | The type of polarization of the wave. |
Question 81
Appeared in Year: 2015
Question Numeric Answer▾
The electric field component of a plane wave traveling in a lossless dielectric medium is given by . The wavelength (in m) for the wave is …
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