# Electrostatics (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 58 - 62 of 109

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## Question number: 58

» Electrostatics » Electrostatic Potential Energy

MCQ▾

### Question

Two equal charges q are placed at a distance of 2a and a third charge -2q is placed at the midpoint. The potential energy of the system is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 59

» Electrostatics » Electric Potential

MCQ▾

### Question

Ten electrons are equally spaced and fixed around a circle of radius R. Relative to V = 0 at infinity, the electrostatic potential V and the electric field E at the center C are

### Choices

Choice (4) Response

a.

V ≠ 0 and

b.

V = 0 and

c.

V = 0 and

d.

V ≠ 0 and

## Question number: 60

» Electrostatics » Capacitors

MCQ▾

### Question

There is an air filled l pF parallel plate capacitor. When the plate separation is doubled and the space is filled with wax, the capacitance increases to 2pF. The dielectric constant of wax is

### Choices

Choice (4) Response

a.

6

b.

YO

8

c.

4

d.

2

## Question number: 61

» Electrostatics » Capacitors

MCQ▾

### Question

In the figure a capacitor is filled with dielectrics K 1, K 2 and K 3. The resultant capacitance is

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

## Question number: 62

» Electrostatics » Capacitors

MCQ▾

### Question

parallel plate capacitor of plate area A and plates separation distance d is charged by applying a potential V 0 between the plates. The dielectric constant of the medium between the plates is K. What is the uniform electric field E between the plates of the capacitor?

### Choices

Choice (4) Response

a.

b.

c.

d.