# Electrostatics (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 5 - 7 of 109

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## Question number: 5

» Electrostatics » Capacitors

Assertion-Reason▾

### Assertion (Ꭺ)

Circuit containing capacitors should be handled cautiously even when there is no current.

### Reason (Ꭱ)

The capacitors are very delicate and so quickly breakdown.

### Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

## Question number: 6

» Electrostatics » Electric Potential

Assertion-Reason▾

### Assertion (Ꭺ)

No work is done in taking a small positive charge from one point to other inside a positively charged metallic sphere while outside the sphere work is done in taking the charge towards the sphere. Neglect induction due to small charge.

### Reason (Ꭱ)

Inside the sphere electric potential is same at each point, but outside it is different for different points.

### Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are false

## Question number: 7

» Electrostatics » Electric Flux

MCQ▾

### Question

A solid sphere S 1 is connected to a charge reservoir through a heater H as shown in figure.

Flux through a closed spherical surface around S l is given by = a t 2 where a is a constant and t is time in seconds. If resistance of heater is R then select correct statements

(1) Power consumed by heater will be 4α 2 ϵ02 Rt 2.

(2) Electric flux through a closed spherical surface around S 2 will be - α t 2.

(3) Rate of change of electric flux through a closed spherical surface around S 2 will be -2α t

(4) All of the above are correct.

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.

2 and 4

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