Electromagnetic Theory-Scalar and Vector Potentials [CSIR (Council of Scientific & Industrial Research) Physical Sciences]: Questions 11 - 13 of 13
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Question 11
Appeared in Year: 2019
Question MCQ▾
A parallel plate capacitor, with 1 cm separation between the plates, has two layers of dielectric with dielectric constants = 2 and = 4, as shown in the figure below. If a potential difference of 10 V is applied between the plates, the magnitude of the bound surface charge density (in units if C/) at the junction of dielectrics is (December)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 12
Appeared in Year: 2018
Question MCQ▾
The electric field and the magnetic field corresponding to the scalar and vector potentials, and = 0 where A0 is a constant, are
(June 3 marks)
Choices
Choice (4) | Response | |
---|---|---|
a. | and 0 | |
b. | 0 and = 0 | |
c. | = 0 and = 0 | |
d. | =- and = 0 A0 |
Question 13
Appeared in Year: 2022
Question MCQ▾
The vector potential for an almost point like magnetic dipole located at the origin is
where denote the spherical polar coordinates and is the unit vector
along . A particle of mass m and charge q, moving in the equatorial plane of the dipole, starts at time with an initial speed and an impact parameter b. Its instantaneous speed at the point of closest approach is A static magnetic field does not alter the magnitude of speed of a charged particle. It only alters the direction of motion. Hence, its speed will be the same as the one it started with
Choices
Choice (4) | Response | |
---|---|---|
a. | 0 | |
b. | ||
c. | ||
d. |