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Two spheres $A$ and $B$ of radius $a$ and $b$ respectively, are at same electric potential. The ratio of the surface charge densities of $A$ and $B$ is

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Important Questions on Electrostatics

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 46

Point charge

q_{1} = 2 μC

and

q_{2} = - 1 μC

are kept at points

x = 0 m

and

x = 6 m

, respectively. Electrical potential will be zero at points

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 47

Eight small drops, each of radius

r

and having same charge

q

are combined to form a big drop. The ratio between the potentials of the bigger drop and the smaller drop is

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 48

Eight oil drops of same size are charged to a potential of

50 V

each. These oil drops are merged into one single large drop. What will be the potential of the large drop?

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 49

Electric potential at a point

x

from the centre inside a conducting sphere of radius

R

and carrying charge

Q

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JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 50

Consider a system composed of two metallic spheres of radii $r_{1}$ and $r_{2}$ connected by a thin wire and switch $S$ as shown in the figure. Initially, $S$ is in open position and the spheres carry charges $q_{1}$ and $q_{2},$ respectively. If the switch is closed, then potential of the system is

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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 51

Two equal positive charges are kept at points

A

and

B

. The electric potential at the points between

A

and

B

(excluding these points) is studied while moving from

A

B .

The potential

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 52

A uniform electric field having a magnitude

E_{0}

and direction along the positive

X -

axis exists. If the potential

V

is zero at

x = 0

, then its value at

X = + x

will be

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 1 - Electrostatics>Objective Problems [ Level1 ]>Q 53

A charge of

5 C

experiences a force of

5000 N

when it is kept in a uniform electric field. What is the potential difference between two points separated by a distance of

1 cm ?

Two spheres A and B of radius a and b respectively, are at same electric potential. The ratio of the surface charge densities of A and B is

Important Questions on Electrostatics

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Two spheres $A$ and $B$ of radius $a$ and $b$ respectively, are at same electric potential. The ratio of the surface charge densities of $A$ and $B$ is