A capacitor is kept connected to a battery and a dielectric slab is inserted between the plates. During the process

Work is done at the cost of the battery

Work is done at the cost of the capacitor

Work is done at the cost of the battery and capacitor

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There are two metallic spheres of same radii, but one is solid, and the other is hollow, then

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Important Questions on Electrostatics

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Physics Crash Course JEE Advanced>Chapter 13 - Electrostatics>Exercise 1>Q 2

A positive point charge

Q

is brought near an isolated metal cube.

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Physics Crash Course JEE Advanced>Chapter 13 - Electrostatics>Exercise 1>Q 3

Two isolated conducting spheres

S_{1}

and

S_{2}

of radius

\frac{2}{3} R

and

\frac{1}{3} R

have

12 μ C

and

- 3 μ C

charges, respectively, and are at a large distance from each other, They are now connected by a conducting wire. A long time after this is done the charges on

S_{1}

and

S_{2}

are respectively:

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Physics Crash Course JEE Advanced>Chapter 13 - Electrostatics>Exercise 1>Q 4

In two cases, two identical conducting spheres are given equal charges, in one case of the same type whereas in another case of the opposite type. The distance between the spheres is not large as compared with the diameter. Let $F_{1}$ and $F_{2}$ be the magnitude of the force of interaction between the spheres, as shown, then

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Physics Crash Course JEE Advanced>Chapter 13 - Electrostatics>Exercise 1>Q 5

Two similar spheres having

+ Q

and

- Q

charge are kept at a certain distance.

F

force acts between the two. If in the middle of two spheres, another similar sphere having

+ Q

charge is kept, then it experiences a force in magnitude and direction as

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Physics Crash Course JEE Advanced>Chapter 13 - Electrostatics>Exercise 1>Q 6

Point charges

+ 4 q

- q

and

+ 4 q

are kept on the

x

-axis at points

X = 0

X = a

and

X = 2 a

, respectively, then

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Physics Crash Course JEE Advanced>Chapter 13 - Electrostatics>Exercise 1>Q 7

Two similar balloons filled with helium gas are tied to strings each of length $L .$ A body of mass $m$ is tied to another end of the strings. The balloons float on air at distance $r .$ If the amount of charge on the balloons is same then the magnitude of charge on each balloon will be

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Physics Crash Course JEE Advanced>Chapter 13 - Electrostatics>Exercise 1>Q 8

A certain charge

2 Q

is divided at first into two parts

q_{1}

and

q_{2}

. Later the charges are placed at a certain distance. If the force of interaction between two charges is maximum then

\frac{Q}{q_{1}} =

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Physics Crash Course JEE Advanced>Chapter 13 - Electrostatics>Exercise 1>Q 9

Five-point charges each of value

+ q

are placed on five vertices of a regular hexagon of side

L

. What is the magnitude of the force on a point charge of value

- q

placed at the center of the hexagon?

There are two metallic spheres of same radii, but one is solid, and the other is hollow, then

Important Questions on Electrostatics

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