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There are two charges $+ 1 μC$ and $+ 5 μC$ . The ratio of the forces acting on them will be

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Important Questions on Electrostatics

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JEE Advanced

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 7

F_{g}

and

F_{e}

represents gravitational and electrostatic force respectively between electrons situated at a distance

10 cm .

The ratio of

\frac{F_{g}}{F_{e}}

is of the order of

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JEE Advanced

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 8

Two similar small 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 small sphere having

+ q

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

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JEE Advanced

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 9

The force between two charges

0.06 m

apart is

5 N

. If each charge is moved towards the other by

0.01 m,

then the force between them will become

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JEE Advanced

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 10

Two charged spheres separated at a distance

d

exert a force

F

on each other. If they are immersed in a liquid of dielectric constant

2,

then what is the force

?

(If all other conditions are same)

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JEE Advanced

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 11

Electric charges of

1 μC, - 1 μC

and

2 μC

are placed in air at the corners

A, B

and

C

respectively of an equilateral triangle

A B C

having length of each side

10 cm .

The resultant force on the charge at

C

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JEE Advanced

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 12

Two small conducting spheres of equal radius have charges

+ 10 μC

and

- 20 μC

respectively and placed at a distance

R

from each other. They experience force

F_{1} .

If they are brought in contact and separated to the same distance, they experience force

F_{2} .

The ratio of

F_{1}

F_{2}

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JEE Advanced

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 13

Equal charges

Q

are placed at the four corners

A, B, C

and

D

of a square of length

a .

The magnitude of the force on the charge at

B

will be

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JEE Advanced

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 14

Two equally charged, identical metal spheres

A

and

B

repel each other with a force

F

. The spheres are kept fixed with a distance

r

between them. A third identical, but uncharged sphere

C

is brought in contact with

A

and then placed at the mid-point of the line joining

A

and

B

. The magnitude of the net electric force on

C

There are two charges +1 μC and +5 μC. The ratio of the forces acting on them will be

Important Questions on Electrostatics

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There are two charges $+ 1 μC$ and $+ 5 μC$ . The ratio of the forces acting on them will be