EASY
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A glass rod rubbed with silk is brought near the fur rubbed with an ebonite rod. What will be your observation between them?

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Important Questions on Electrostatics

MEDIUM
A neutral spherical copper particle has a radius of 10 nm1 nm=10-9 m. It gets charged by applying the voltage slowly adding one electron at a time. Then, the graph of the total charge on the particle versus the applied voltage would look like
EASY
Two identical conducting spheres A and B carry equal charge. They are initially separated by a distance much larger than their diameters and the force between them is F. A third identical conducting sphere C is uncharged. Sphere C is first touched to A, then to C and removed. As a result, the force between A and B now is
HARD
Two isolated conducting spheres S1 and S2 of radius 23R and 13R have 12 μC and -3 μC 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 S1 and S2 are respectively:
MEDIUM
An ebonite rod is rubbed with fur. Explain the charging of the ebonite rod and the fur on the basis of electron movement.
EASY
Why does a plastic comb rubbed with dry hair attract bits of paper ?
EASY

An ebonite rod rubbed with fur and a glass rod rubbed with silk cloth are brought nearer to each other. Then:

EASY
A glass rod rubbed with silk repels an ebonite rod rubbed with fur.
MEDIUM
How will you show that like charges repel and unlike charges attract each other ?
EASY
Ebonite rod when rubbed with flannel —
EASY

The electric charge developed on glass rod rubbed with silk cloth is different from the charge developed on ebonite rod rubbed with fur.

EASY
After rubbing the glass rod with silk cloth, the glass rod becomes positively charged. The silk cloth becomes negatively charged.
MEDIUM
A glass rod is rubbed with silk. Explain the charging of the glass rod and the silk on the basis of electron movement.
EASY
Explain concept of repulsion between Two Glass Rods Rubbed with Silk Cloth.
EASY
Name two substances which can be charged by friction.
EASY
When there is attraction or repulsion between charged bodies?
EASY
When a glass rod is rubbed with a silk cloth, the glass rod acquires a negative charge.
EASY
When a glass rod is rubbed with silk cloth then?
EASY
What happen when flannel is rubbed over a glass rod?
EASY
Why does a glass rod when rubbed with silk cloth acquire positive charge and not?