Electromagnetic Theory-Electrostatics: Gauss's Law and Its Applications (CSIR Physical Sciences): Questions 1 - 3 of 11

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 389 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 250.00 or

Question number: 1

» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications

Appeared in Year: 2012

MCQ▾

Question

Three charges are located on the circumference of a circle of radius R as shown in the figure below. The two charges Q subtend an angle 900 at the centre of the circle. The charge q is symmetrically placed with respect to the charges Q. If the electric field at the centre of the circle zero, what is the magnitude of Q? (December)

Three charges located on a circle

Three Charges Located on a Circle

In figure three charges are located on the circumference of a circle of radius R. The two charges Q subtend an angle 900 at the centre of the circle. The charge q is symmetrically placed with respect to the charges Q.

Choices

Choice (4) Response

a.

2q

b.

4q

c.

q2

d.

2q

Question number: 2

» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications

Appeared in Year: 2014

MCQ▾

Question

A charged particle is at a distance d from an infinite conducting plane maintained at zero potential. When released from rest, the particle reaches a speed u at a distance d2 from the plane. At what distance from the plane will the particle reach the speed 2u ? (June)

Choices

Choice (4) Response

a.

d6

b.

d5

c.

d3

d.

d4

Question number: 3

» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications

Appeared in Year: 2014

MCQ▾

Question

Consider an electromagnetic wave at the interface between two homogeneous dielectric media of dielectric constant ε1 and ε2 . Assuming ε2>ε1 and no charge on the surface, the electric field vector E and the displacement vector D in the two media satisfy the following inequalities – (June)

Choices

Choice (4) Response

a.

E2 < E1 and D2 < D1

b.

E2 < E1 and D2 > D1

c.

E2 > E1 and D2 > D1

d.

E2 > E1 and D2 < D1

Sign In