What is the use of Gaussian surface?

Important Questions on Electric Charges and Field

EASY

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 1 - Electric Charges and Field>Text Based Exercises>Q 72

How much is the electric flux through a closed surface due to a charge lying outside the closed surface?

MEDIUM

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 1 - Electric Charges and Field>Text Based Exercises>Q 75

An electric dipole of dipole moment $20\times {10}^{-6}\mathrm{C} \mathrm{m}$ is enclosed by a closed surface. What is the net flux coming out of the surface?

EASY

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 1 - Electric Charges and Field>Text Based Exercises>Q 79

How does the electric flux due to a point charge enclosed by a spherical Gaussian surface get affected when its radius is increased?

EASY

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 1 - Electric Charges and Field>Text Based Exercises>Q 81

A charge '$q$’ is placed at the centre of a cube. What is the electric flux passing through the cube?

EASY

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 1 - Electric Charges and Field>Text Based Exercises>Q 82

A charge '$q$' is placed at the centre of a cube of side $l$. What is the electric flux passing through each face of the cube?

EASY

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 1 - Electric Charges and Field>Text Based Exercises>Q 83

A charge '$q$' is placed at the centre of a cube of side $l$. What is the electric flux passing through two opposite faces of the cube?

EASY

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 1 - Electric Charges and Field>Text Based Exercises>Q 84

A charge $Q \mathrm{\mu C}$ is placed at the centre of a cube. What is the flux coming out from any one surface?

EASY

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 1 - Electric Charges and Field>Text Based Exercises>Q 85

Charges of magnitudes $2Q$ and $-Q$ are located at points $(a, o, o)$ and $(4a, o, o)$. Find the ratio of the flux of electric field, due to these charges, through concentric spheres of radii $2a$ and $8a$ centred at the origin.