When the charged comb is brought near bits of paper, the bits stick to the comb, but temporarily. Why is it so?

When two objects are rubbed against each other, one object is prone to lose some electrons and becomes more positively charged, while another object is prone to gain electrons and becomes more negatively charged. This build-up of excess charge is what is called static electricity.

As the name suggests, static means not moving. Static electricity is an electrical static charge, that doesn't move.

When you rub a balloon on your hair. Electrons in outer orbitals of the hair fibres can be pulled off onto the comb surface. The comb, now negatively charged will attract other objects, like paper by inducing temporary charge.

Static electricity is the result of an imbalance between negative and positive charges in an object, and when the objects are separated it seeks out any way to retain or neutralize this charge imbalance itself.

The static charge is a temporary charge as it is produced by the frictional force which creates heat and imbalances the nucleus of the atom of the object by losing or gaining the electrons for a short time. Due to this, the object gets charged until the nucleus neutralizes or balance this charge itself again.


Simply Easy Learning

Updated on: 10-Oct-2022


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