For which of the following, the superposition principle does not hold?

Energy Density of Electric field

MEDIUM

JEE Main

IMPORTANT

Earn 100

Two insulated charged spheres of radii $R_{1}$ and $R_{2}$ having charges $Q_{1}$ and $Q_{2}$ are respectively connected to each other. There is

29.2% studentsanswered this correctly

Important Questions on Electrostatics

MEDIUM

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 13 - Electrostatics>Level 2>Q 28

Figure shows a charged conductor resting on an insulating stand. If at the point $P$ the charge density is $σ$ , the potential is $V$ and the electric field strength is $E$ , what are the values of these quantities at point $Q$ ?

Question Image

HARD

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 13 - Electrostatics>Level 2>Q 29

The line $A G$ in the shown figure is a diagonal of a cube. A positive point charge $q$ is located on the extension of line $A G$ very closeto vertexAofthe cube. The electric flux passing through side $A B C D$ is $\frac{- q}{6 k ε_{0}} .$ Find the value of $k .$

Question Image

MEDIUM

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 13 - Electrostatics>Level 2>Q 30

Consider a uniform spherical charge distribution of radius $R_{1}$ centered at the origin $O$ . In this distribution, a spherical cavity of radius, centered at $P$ with distance $O P = a = R_{1} - R_{2}$ (see figure) is made. If the electric field inside the cavity at position $\vec{r}$ is $\vec{E} (\vec{r})$ , then the correct statement is / are:

Question Image

MEDIUM

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 13 - Electrostatics>Level 2>Q 31

Two non-conducting solid spheres of radii

R

and

2 R

, having uniform volume charge densities

ρ_{1}

and

ρ_{2}

respectively, touch each other. The net electric field at a distance

2 R

from the centre of the smaller sphere, along the line joining the centres of the spheres, is zero. The ratio

\frac{ρ_{1}}{ρ_{2}}

can be ;

HARD

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 13 - Electrostatics>Level 2>Q 32

A parallel plate capacitor is to be constructed which can store

q = 10 μC

charge at

V = 1000 V

. The minimum plate area of the capacitor is required to be

A_{1}

when space between the plates has air. If a dielectric of constant

K = 3

is used between the plates, the minimum plate area required to make such a capacitor is

A_{2}

. The breakdown field for the dielectric is

8

times that of air. Find

\frac{A_{1}}{A_{2}} .

MEDIUM

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 13 - Electrostatics>Level 2>Q 33

The plates of a parallel plate capacitor are charged upto

200 V

. A dielectric slab of thickness 4 mm is inserted between its plates. Then, to maintain the same potential difference between the plates of the capacitor, the distance between the plates is increased by

3.2 mm

. The dielectric constant of the dielectric slab is

MEDIUM

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 13 - Electrostatics>Level 2>Q 34

On increasing the distance between the plates of a parallel plate condenser, which of the following statement is true?

MEDIUM

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 13 - Electrostatics>Level 2>Q 35

A capacitor is charged by using a battery, which is then disconnected. A dielectric slab is then slipped between the plates, which results in

Two insulated charged spheres of radii R1 and R2 having charges Q1 and Q2 are respectively connected to each other. There is

Important Questions on Electrostatics

Learn and Prepare for any exam you want !

Two insulated charged spheres of radii $R_{1}$ and $R_{2}$ having charges $Q_{1}$ and $Q_{2}$ are respectively connected to each other. There is