Electrostatics-Electric Potential (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 9 - 11 of 25

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Question number: 9

» Electrostatics » Electric Potential

MCQ▾

Question

A particle A has charge +q and a particle B has charge +4q with each of them having the same mass m. When allowed to fall from rest through the same electric potential difference, the ratio of their speed Equation will become

Choices

Choice (4) Response

a.

1: 2

b.

4: 1

c.

2: 1

d.

1: 4

Question number: 10

» Electrostatics » Electric Potential

MCQ▾

Question

A charge (-q) and another charge (+Q) are kept at two points A and B respectively. Keeping the charge (+Q) fixed at B, the charge (-q) at A is moved to another point C such that ABC forms an equilateral triangle of side l. The net work done by electrostatic field in moving the charge (-q)

Choices

Choice (4) Response

a.

Equation

b.

Zero

c.

Equation

d.

Equation

Question number: 11

» Electrostatics » Electric Potential

MCQ▾

Question

For spherical symmetrical charge distribution, variation of electric potential with distance from center is given in Equation and Equation ,

Curve of potential → distance (r)

Curve of Potential → Distance (R)

Curve shows that from o to r = R0 potential becomes constant and from r > R0, it decays

Then which option are correct:

(1) Total charge within 2R 0 is q

(2) Total electrostatic energy for Equation is non-zero.

(3) At Equation electric potential is discontinuous

(4) There will be no charge anywhere except at Equation

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1 and 3

b.

1, 2 and 4

c.

2 and 4

d.

1 and 2

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