Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 40

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Two charges of $+ 25 \times 10^{- 9}$ coulomb and $- 25 \times 10^{- 9}$ coulomb are placed $6 m$ apart. Find the electric field intensity ratio at points $4 m$ from the centre of the electric dipole (i) on axial line (ii) on equatorial line

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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 41

The electric force on a point charge situated on the axis of a short dipole is

F .

If the charge is shifted along the axis to double the distance, the electric force acting will be

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 42

An electric dipole is placed at an angle

60 °

with an electric field of strength

4 \times 10^{5} N C^{- 1} .

It experiences a torque equal to

8 \sqrt{3} Nm .

Calculate the charge on the dipole, if dipole is of length

4 cm

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 44

A charge

Q

is placed at the centre of the open end of a cylindrical vessel. Electric flux through the surface of the vessel is

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 45

A hemispherical surface of radius $R$ is kept in a uniform electric field $E$ as shown in figure. The flux through the curved surface is

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 46

Total electric flux associated with unit positive charge in vacuum is

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 47

A charged body has an electric flux

F

associated with it. Now if the body is placed inside a conducting shell then the electric flux outside the shell is

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 48

A cylinder of radius

R

and length

L

is placed in a uniform electric field

E

parallel to the cylinder axis. The outward flux over the surface of the cylinder is given by

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Gamma Question Bank for Medical Physics>Chapter 16 - Electric Charges and Fields>Assignment>Q 49

A rectangular surface of sides

10 cm

and

15 cm

is placed inside a uniform electric field of

25 V m^{- 1},

such that the surface makes an angle of

30 °

with the direction of electric field. Find the flux of the electric field through the rectangular surface