CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Properties of Charges

A conducting ...

Question

A conducting sphere of radius $10 c m$ has a charge $30 μ C$ . When this sphere is put in contact with other uncharge conducting sphere of radius $20 c m$ , then find the value of charge on both the sphere

Open in App

Solution

Potential will be same on their surfaces when they are in contact
$k (Q - q) / r_{1} = k q / r_{2}$
$(30 - q) / 10 = (q) / 20$
$60 - 2 q = q$
$q = 20 μ C$

Suggest Corrections

thumbs-up

1

Similar questions

Q. A conducting sphere of radius

10 cm

is charged with

10 μ C

. Another uncharged sphere of radius

20 cm

is allowed to touch it for some time. After that if the spheres are seperated, then surface charge density on the spheres will be in the ratio of

Q. A charged conducting sphere

A

a

is brought into contact with an uncharged conducting sphere

B

b .

After the spheres are disconnected and separated by large distance, the energy stored in sphere

B

U

. The charge held by sphere

A

before making contact is

Q. A conducting sphere of radius 10 cm has an unknown charge. Ifthe electric field 20 cm from the centre of the sphere is 1.5 × 103 N/Cand points radially inward, what is the net charge on the sphere?

Q. A large conducting sphere of radius

r

, having a charge

Q

is placed in contact with a small neutral conducting sphere of radius

r^{'}

and is then separated. The charge on smaller sphere will now be:

Q. A solid conducting sphere of radius

^{'} a^{'}

is surrounded by a thin uncharged concentric conducting shell of radius

2 a

. A point charge

q

is placed at a distance

4 a

from common centre of conducting sphere and shell. The inner sphere is then grounded .The charge on the solid sphere is

\frac{- q}{n}

. Find the value of

n

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Idea of Charge

PHYSICS

Watch in App

explore_more_icon

Explore more

Properties of Charges

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon