Electrostatics (NEET Physics): Questions 5 - 7 of 107

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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.

Two Solid Spheres given in figure

Two Solid Spheres Given in Figure

Two solid spheres connected with heater.

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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