# Electrostatics-Coulomb's Law (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 1 - 5 of 9

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## Question number: 1

» Electrostatics » Coulomb's Law

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MCQ▾

### Question

An electron is moving round the nucleus of a hydrogen atom in a circular orbit of radius r. Calculate the Coulomb force F between proton and electron. (here

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

## Question number: 2

» Electrostatics » Coulomb's Law

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MCQ▾

### Question

Two small balls each having the charge + Q are suspended by insulating threads of length L from a hook. This arrangement is taken in space where there is no gravitational effect, then the angle between the two suspensions and the tension in each thread will be,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 3

» Electrostatics » Coulomb's Law

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MCQ▾

### Question

A total charge Q is broken in two parts Q 1 and Q 2 and they are placed at a distance R from each other. The maximum force of repulsion between them will occur, when

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 4

» Electrostatics » Coulomb's Law

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MCQ▾

### Question

Equal charges q are placed at the four corners A, B, C, D of a square of length a. The magnitude of the force on the charge at B will be

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 5

» Electrostatics » Coulomb's Law

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MCQ▾

### Question

In the rectangle shown below, the two corners have charges q 1 = -5 μC and q 2 = +2.0 μC. Find the force acting on the q 2 due to q 1. Rectangular Image Given Having Charge Values In figure the rectangular having two charges at corners q1=-5 μC and q2 =+2.0 μC.

### Choices

Choice (4) Response

a.

-40N

b.

-30N

c.

-20N

d.

-60N

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