Electrostatics (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 99 - 102 of 109

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Question number: 99

» Electrostatics » Electrostatic Potential Energy

MCQ▾

Question

A positive charge is moved from a low potential point A to high potential point B. Then the electric potential energy of the system

Choices

Choice (4) Response

a.

Nothing definite can be predicted

b.

Increases

c.

Decreases

d.

Will remain the same

Question number: 100

» Electrostatics » Electric Field Lines

Assertion-Reason▾

Assertion (Ꭺ)

Electric lines of force cross each other.

Reason (Ꭱ)

Electric field at a point superimpose to give one resultant electric field.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

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

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is false but Ꭱ is true

Question number: 101

» Electrostatics » Electrostatic Potential Energy

MCQ▾

Question

If V and u are electric potential and energy density, respectively, at a distance r from a positive point charge, then which of the following graph is correct?

Choices

Choice (4) Response

a.

Option A graph of V2→u

Option a Graph of V2→U

figure shows that the graph of V2→u is not linear

b.

 Option B graph of V2→u

Option B Graph of V2→U

figure shows that the graph of V2→u is not linear

c.

Option C graph of V2→u

Option C Graph of V2→U

Figure shows that the graph of V2→u is lenear and it pass though origin.

d.

Option D graph of V2→u

Option D Graph of V2→U

Figure shows that the graph of V2→u is linear sloping downwards

Question number: 102

» Electrostatics » Capacitors

MCQ▾

Question

A parallel plate capacitor with plate area A and separation between the plates d, is charged by a constant current i. Consider a plane surface of area parallel to the plates and drawn symetrically between the plates, What is the displacement current through this area?

Choices

Choice (4) Response

a.

b.

c.

2i

d.

i

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