NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2169 - 2172 of 2184

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Question number: 2169

» Electrostatics » Electric Potential

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MCQ▾

Question

Equipotential at a great distance from a collection of charges whose total sum is not zero are approximately

Choices

Choice (4) Response

a.

Spheres

b.

Planes

c.

Paraboloids

d.

Ellipsoids

Question number: 2170

» Electrostatics » Gauss's Law

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MCQ▾

Question

Consider a region inside which there are various types of charges but the total charge is zero. At points outside the region

Choices

Choice (4) Response

a.

The electric field is necessarily zero.

b.

The work done to move a charged particle along a closed path, away from the region, will be zero.

c.

The dominant electric field is for large , where r is the distance from a origin in this region.

d.

Both c. and b. are correct

Question number: 2171

» Electrostatics » Equipotential Surfaces

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MCQ▾

Question

The work done to move a charge along an equipotential from A to B

Choices

Choice (4) Response

a.

Must be defined as

b.

Can have a non-zero value.

c.

Is zero

d.

Both a. and c. are correct

Question number: 2172

» Physics and Measurement » Technology and Society

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MCQ▾

Question

A current carrying circular loop of radius is placed in the plane with center at the origin. Half of the loop with is now bent so that it now lies in the plane.

Choices

Choice (4) Response

a.

The magnitude of at is unchanged.

b.

The magnitude of magnetic moment now diminishes.

c.

The magnetic moment does not change.

d.

The magnitude of at increases.