Electromagnetic Theory [GATE (Graduate Aptitude Test in Engineering) Physics (PE)]: Questions 26 - 28 of 276
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Question 26
Appeared in Year: 2014
Question MCQ▾
A superconducting ring carries a steady current in the presence of a magnetic field normal to the plane of the ring. Identify the incorrect statement. (December)
Choices
Choice (4) | Response | |
---|---|---|
a. | The flux passing through the superconductor is quantized in unit of | |
b. | The current density and are related by the equation where is a constant. | |
c. | The superconductor shows an energy gap, which is proportional to the transition temperature of the superconductor. | |
d. | The current and the magnetic field in the superconductor are time independent. |
Question 27
Appeared in Year: 2011
Question MCQ▾
For constant uniform electric and magnetic fields and , it is possible to choose a gauge such that the scalar potential and vector potential are given by, - (June)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 28
Appeared in Year: 2011
Question MCQ▾
Circularly polarized light with intensity is incident normally on a glass prism as shown in the figure. The index of refraction of glass is . The intensity I of light emerging from the prism is:
(June)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |