Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise (Conceptual Questions)>Q 103

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A hollow conducting sphere has inner radius 5 cm and outer radius 8 cm then find maximum possible potential of conductor if breakdown electric field of air is $3 \times 10^{6} {Vm}^{- 1}$ .

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Important Questions on Electrostatics

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Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise (Conceptual Questions)>Q 104

Assertion: Dielectric constant of metal is infinite.

Reason: Electric field inside metal is zero.

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Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise (Previous Year Questions)>Q 1

When an electric dipole

\vec{p}

is kept in a uniform electric field

\vec{E}

, then for what value of the angle between

\vec{p}

and

\vec{E}

will the torque be maximum?

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Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise (Previous Year Questions)>Q 2

What will be the ratio of electric field at a point on the axis and an equidistant point on the equatorial line of a dipole:

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Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise (Previous Year Questions)>Q 3

For a dipole

q = 2 \times 10^{- 6} C

;

d = 0.01 m

; find the maximum torque on the dipole if

E = 5 \times 10^{5} N C^{- 1}

:-

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Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise (Previous Year Questions)>Q 4

The electric potential at a point due to an electric dipole will be -

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Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise (Previous Year Questions)>Q 5

The force on a charge situated on the axis of a dipole is

F .

If the charge is shifted to double the distance, the acting force will be -

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Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise (Previous Year Questions)>Q 6

A small electric dipole is of dipole moment

p

. The electric potential at a distance '

r

' from its centre and making an angle

θ

from the axis of dipole will be:

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Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise (Previous Year Questions)>Q 7

If an electric dipole is placed in an electric field generated by a point charge, then