Question

Plastic straws $A$ and $B$ are rubbed with dry cotton cloth. What will happen if they are brought near each other?

Answer 1

When two distinct materials are rubbed together, electrons from one material are transferred to the other. As a result, one object becomes positively charged (the electron loser) while the other becomes negatively charged (the electron gainer) (the electron gainer).

Complete answer:
They will repel each other because when the plastic straws are rubbed together with the cotton cloth, they both acquire the same charge, and charges that are comparable repel each other. As a result, the straws will repel one another.

Additional Information: These two basic charge interactions principles will be utilised throughout the class to describe a wide range of static electricity events. Electrically charged items can be positively or negatively charged. Those with more protons than electrons are positively charged, while those with fewer protons than electrons are negatively charged.

Positive and negative electrical charges are said to be the polar opposites of each other. A positively charged object will attract a negatively charged object, according to our basic charge interaction theory. Objects with opposing charges will be attracted to each other. In contrast to the attractive force that exists between two items with opposite charges, two objects with the same charge repel one another.

To put it another way, a positively charged object repels another positively charged object. The two items will be pushed apart by this repulsive force. A negatively charged object will repel a second negatively charged object in the same way. Like-charged objects repel one another.

Note: When undertaking any of these activities, it's vital to keep in mind the weather: high humidity might make it harder to build up charges, prompting experiments to react in unexpected ways! Clear, sunny, and cool weather is ideal for “static” weather.