NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2153 - 2155 of 2184

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Question number: 2153

» Electrostatics » Dielectrics and Electric Polarization

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MCQ▾

Question

parallel plate capacitor is made of two dielectric blocks in series. One of the blocks has thickness d1 and dielectric constant and the other has thickness and dielectric constant as shown in Figure. This arrangement can be thought as a dielectric slab of

thickness ) and effective dielectric constant K. The K is

Image of The dielectric slab

Image of the Dielectric Slab

Image of The dielectric slab

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 2154

» Electrostatics » Electric Field

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Question

A point charge , is placed at a distance from an isolated conducting plane. The field at a point on the other side of the plane is

Choices

Choice (4) Response

a.

Directed radially away from the point charge.

b.

Directed perpendicular to the plane and away from the plane.

c.

Directed radially towards the point charge.

d.

Directed perpendicular to the plane but towards the plane.

Question number: 2155

» Electrostatics » Electric Field

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MCQ▾

Question

A positively charged particle is released from rest in an uniform electric field. The electric potential energy of the charge

Choices

Choice (4) Response

a.

Remains a constant because the electric field is uniform.

b.

Increases because the charge moves along the electric field.

c.

Decreases because the charge moves along the electric field.

d.

Decreases because the charge moves opposite to the electric field.