The plastic rod gains static electricity.
When a plastic rod is rubbed with a silk cloth, electrons are transferred from the silk to the plastic rod. This results in the plastic rod becoming negatively charged and the silk cloth becoming positively charged. This effect is known as triboelectric charging.
When a plastic rod is rubbed with a woolen cloth, electrons are transferred from the wool to the plastic due to the friction between the two materials. This transfer of electrons creates a static charge on the plastic rod, giving it a negative charge and the wool a positive charge.
When an ebonite rod is rubbed with a woolen cloth or fur, the ebonite rod gains a negative charge. This is due to the transfer of electrons from the wool or fur to the ebonite rod, creating an excess of electrons on the rod and resulting in a negative charge.
When a glass rod is rubbed against a silk cloth, the glass rod becomes positively charged because it loses electrons to the silk cloth. The silk cloth becomes negatively charged because it gains those electrons from the glass rod. This transfer of electrons results in the glass rod and silk cloth having opposite charges.
The pith ball will be attracted to the plastic rod because the rod acquires a negative charge when rubbed with silk. This causes the pith ball, which is neutral, to be attracted to the rod due to the opposite charges.
When a plastic rod is rubbed with a silk cloth, electrons are transferred from the silk to the plastic rod. This results in the plastic rod becoming negatively charged and the silk cloth becoming positively charged. This effect is known as triboelectric charging.
When a plastic rod is rubbed with a woolen cloth, electrons are transferred from the wool to the plastic due to the friction between the two materials. This transfer of electrons creates a static charge on the plastic rod, giving it a negative charge and the wool a positive charge.
When an ebonite rod is rubbed with a woolen cloth or fur, the ebonite rod gains a negative charge. This is due to the transfer of electrons from the wool or fur to the ebonite rod, creating an excess of electrons on the rod and resulting in a negative charge.
When a glass rod is rubbed against a silk cloth, the glass rod becomes positively charged because it loses electrons to the silk cloth. The silk cloth becomes negatively charged because it gains those electrons from the glass rod. This transfer of electrons results in the glass rod and silk cloth having opposite charges.
The pith ball will be attracted to the plastic rod because the rod acquires a negative charge when rubbed with silk. This causes the pith ball, which is neutral, to be attracted to the rod due to the opposite charges.
The ebonite rod acquires a negative charge when rubbed with woolen cloth because electrons are transferred from the woolen cloth to the ebonite rod.
When the plastic rod is rubbed with a cloth, it becomes charged with static electricity. The rod becomes positively charged by stripping electrons from the cloth, making it attractive to the small pieces of paper which are negatively charged. This electrostatic force allows the plastic rod to pick up the small pieces of paper.
The glass rod loses electrons when rubbed with a silk cloth. This leaves the glass rod positively charged as it loses negative electrons to the silk cloth through friction.
A it has a electron
Rubbing the plastic rod with a woolen cloth transferred electrons from the wool to the plastic, giving the plastic a negative charge. The saw dust, being positively charged, was attracted to the negatively charged plastic rod due to electrostatic forces, causing it to stick to the rod.
This happens because the negative electrons on the duster move to the polythene rod. Despite this, the rod still has some positive electrons meaning it should be called an unbalanced negatively charged rod. Hope this helps XD
Rubbing a plastic body like comb on dry hair can impart static charges on it. Also, glass rod rubbed on silk cloth, ebonite rod rubbed on silk cloth. Most of them we have learnt in our schools. If you want a something really huge, try Van de Graaff generator.