Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 8

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The electric field $(E)$ due to infinite charged sheet varies as distance $' r'$ is given by

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Important Questions on Electric Charges and Fields

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 10

In the following figure, if magnitude of force between $B$ and $C$ is $F$ , then magnitude of force between $A$ and $B$ is

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 11

The S.I. unit of electric field intensity is Newtons per _____.

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 12

Six equal positive point charges

q

each, are placed at the corners of a regular hexagon of side a. The electric field intensity at the centre of the hexagon is_____.

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 13

The electric field _____ due to point charge

Q

varies with distance

r

as

E \propto \frac{1}{r^{2}}

.

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 15

An electric dipole of dipole moment

2 \times 10^{- 8} Cm

is placed in a uniform external electric field of

2 \times 10^{5} N C^{- 1}

. The maximum torque on the dipole is_____

\times 10^{- 3} N m

.

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 17

The distance of the field point, on the equatorial plane of a small electric dipole, is halved. By what factor will the electric field, due to the dipole change ?

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 18

In an electric field an electron is kept freely. If the electron is replaced by proton, what will be relationship between the forces experience by them.

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 20

Figure shows three point charges, $+ 2 q, - q$ and $+ 3 q$ . Two charges $+ 2 q$ and $- q$ are enclosed within a surface $S$ . What is the electric flux due to this configuration through the surface $' S'$ ?