Electrostatics-Electric Potential (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 17 - 20 of 25

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Question number: 17

» Electrostatics » Electric Potential

MCQ▾

Question

A proton moves a distance d in a uniform electric field if as shown in the figure. Then which of the following statements are correct?

Proton and its direction

Proton and Its Direction

A proton moves a distance d in a uniform electric field is shown in figure

  1. Electric field do a negative work on the proton
  2. Electric potential energy of the proton increases
  3. Electric field do a positive work on the proton
  4. Electric potential energy of the proton decreases

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

Choices

Choice (4) Response

a.

1 and 2

b.

1 and 3

c.

1,2 and 3

d.

1 and 4

Question number: 18

» Electrostatics » Electric Potential

MCQ▾

Question

In a hydrogen atom, the electron revolves around the nucleus in an orbit of radius 0.53 x 10 -10 m. Then the electrical potential produced by the nucleus at the position of the electron is

Choices

Choice (4) Response

a.

-27.2V

b.

27.2V

c.

13.6V

d.

-13.6V

Question number: 19

» Electrostatics » Electric Potential

MCQ▾

Question

The distance between H + and CI - ions in HCl molecule is 1.28. What will be the potential due to this dipole at a distance of 12 on the axis of dipole?

Choices

Choice (4) Response

a.

13 V

b.

130 V

c.

1.3 V

d.

0.13 V

Question number: 20

» Electrostatics » Electric Potential

MCQ▾

Question

Identical point charges, each having +q charge, are fixed at each of the points x = x 0, x = 3x 0, x = 5x 0 ……… infinite, on the x-axis and an identical point charges, each having -q charge, are fixed at each of the points x = 2x 0, x = 4x 0, x = 6x 0 ……. infinite. Here x 0 is a positive constant. Potential at the origin due to the above system of charges is,

Choices

Choice (4) Response

a.

b.

c.

d.

0

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