Question

Give reasons for the following 1.a balloon rubbed with wool sticks to the wall 2. one should not stand under a tall tree during lightning and thunderstorm 3.Acharged body becomes neutral when we touch it, 4.Lightning conductors are provided on high rise buildings,​

Answer 1

1. Wool is a conductive material, which means it readily gives away its electrons. Consequently, when you rub a balloon on wool, this causes the electrons to move from the wool to the balloon's surface. ... When the balloon has been rubbed enough times to gain a sufficient negative charge, it will be attracted to the wall.
2. Lightning is a result of electrical charges. And lightning occurs mostly on tall objects. ... Therefore, one should not stand near a tree or a tall building during a thunderstorm because Lightning can strike trees and buildings and further it can jump to humans easily.
3. charged body loses its charge if we touch it with our hand because when we touch a charged body, it loses its charge and become neutral due to the process of earthing. Our body is a good conductor of electricity. It transfers the charges to the earth.
4. Tall buildings have lightning conductors to help transport the electrical current from a lightening strike to the ground safely. This protects the structure's electrical equipment and the materials used within the building