Electromagnetic Theory-Electrostatics: Gauss's Law and Its Applications (CSIR Physical Sciences): Questions 4 - 7 of 11

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 401 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 300.00 or

Question number: 4

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

Appeared in Year: 2012

MCQ▾

Question

Four charges (two + q and two –q) are kept fixed at the four vertices of a square of side a as shown

Four charges kept at vertices of a square

Four Charges Kept at Vertices of a Square

In figure four charges (two + q and two –q) are kept fixed at the four vertices of a square of side a.

At the point P which is at a distance R from the centre (Ra) , the potential is proportional to – (December)

Choices

Choice (4) Response

a.

1R4

b.

1R2

c.

1R

d.

1R3

Question number: 5

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

Appeared in Year: 2011

MCQ▾

Question

Four equal point charges are kept fixed at the four vertices of a square. How many neutral points i. e. , points where the electric field vanishes will be found inside the square? (December)

Choices

Choice (4) Response

a.

4

b.

3

c.

7

d.

5

Question number: 6

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

Appeared in Year: 2012

MCQ▾

Question

A point charge q of mass m is kept at a distance d below a grounded infinite conducting sheet which lies in the xy – plane. For what value of d will the charge remains stationary? (December)

Choices

Choice (4) Response

a.

qmgπε0

b.

There is no finite value of d

c.

mgρε0q

d.

q4mgπε0

Question number: 7

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

Appeared in Year: 2014

MCQ▾

Question

The electrostatic line of force due to a system of four point charges is sketched below.

The electrostatic lines of force

The Electrostatic Lines of Force

In figure the electrostatic line of force due to a system of four point charges is shown.

At a large distance r , the leading asymptotic behaviour of the electrostatic potential is proportional to – (December)

Choices

Choice (4) Response

a.

r3

b.

r

c.

r1

d.

r2

f Page
Sign In