# Electrostatics-Electrostatic Potential Energy (NEET Physics): Questions 1 - 5 of 17

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## Question number: 1

» Electrostatics » Electrostatic Potential Energy

MCQ▾

### Question

Two identical charges are placed at the two corners of an equilateral triangle. The potential energy of the system is U. The work done in bringing an identical charge from Infinity to the third vertex is

### Choices

Choice (4) Response

a.

zero

b.

2U

c.

U

d.

3U

## Question number: 2

» Electrostatics » Electrostatic Potential Energy

MCQ▾

### Question

An electric dipole has the magnitude of its charge is q and its dipole moment is p. It is placed in a uniform electric field E. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively

### Choices

Choice (4) Response

a.

Zero and minimum

b.

q. E and p. E

c.

2q. E and minimum

d.

q. E and maximum

## Question number: 3

» Electrostatics » Electrostatic Potential Energy

MCQ▾

### Question

Two equal negative point charges 2µC place1 m apart from each other in air. so what is the potential energy of the system?

### Choices

Choice (4) Response

a.

2eV

b.

2 J

c.

4 J

d.

0.036 J

## Question number: 4

» Electrostatics » Electrostatic Potential Energy

MCQ▾

### Question

Charges -q, Q and -q are placed at equal distance on a straight line. If the total potential energy of the system of three charges is zero, then find the ratio Q/q.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 5

» Electrostatics » Electrostatic Potential Energy

MCQ▾

### Question

As shown in figure a dust particle with mass m = 5.010 -9 kg and charge q 0 = 2.0 nC starts from rest at point a and moves in a straight line to point b. What is its speed v at point b?

### Choices

Choice (4) Response

a.

26 ms -1

b.

14 ms -1

c.

46 ms -1

d.

34 ms -1

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