Physics Crash Course NEET>Chapter 12 - Electrostatics>Level 3>Q 101

EASY

NEET

IMPORTANT

Earn 100

Three concentric conducting spherical shells have radii $r, 2 r$ and $3 r$ and charges $q_{1}, q_{2}$ and $q_{3}$ respectively. Innermost and outermost shells are earthed as shown in figure. The charges shown are after earthing. Select the correct alternative.

50% studentsanswered this correctly

Important Questions on Electrostatics

MEDIUM

NEET

IMPORTANT

Physics Crash Course NEET>Chapter 12 - Electrostatics>Level 3>Q 102

A thin metallic spherical shell contains a charge

Q

on its surface. A point charge

q_{1}

is placed at the center of the shell, and another charge

q_{2}

is placed outside the shell. All the three charges are positive. Then the force on charge

q_{1}

is

Question Image

MEDIUM

NEET

IMPORTANT

Physics Crash Course NEET>Chapter 12 - Electrostatics>Level 3>Q 103

Three concentric metallic spherical shells of radii

R, 2 R

and

3 R

are given charges

Q_{1}, Q_{2}

and

Q_{3}

respectively. It is found that the surface charge densities on the outer surfaces of the shells are equal. Then the ratio

Q_{1} : Q_{2} : Q_{3}

of the charges given to the shells is

EASY

NEET

IMPORTANT

Physics Crash Course NEET>Chapter 12 - Electrostatics>Level 3>Q 104

Consider the Gaussian surface that surrounds part of the charge distribution shown in the figure. Then the contribution to the electric field at point

P

arises from charges
Question Image

Question Image

EASY

NEET

IMPORTANT

Physics Crash Course NEET>Chapter 12 - Electrostatics>Level 3>Q 105

A linear charge having linear charge density $λ$ , penetrates a cube diagonally and then, it penetrates a sphere diametrically as shown. What will be the ratio of flux coming out of the cube to that from the sphere?

Question Image