Who represented the quantization of electric charge first and on what basis ?
A charged gold leaf electroscope has its leaves apart by certain amount having enclosed air. When the electroscope is subjected to $X$-rays, then the leaves
What is quantization of charge ? What is the reason of quantization ?
What is the meaning of addition of charges ?
Why the light particles like pith balls attract towards charged rod ?
$(a)$ A comb run through one’s dry hair attracts small bits of paper. Why?
What happens if the hair is wet or if it is a rainy day? (Remember, a paper does not conduct electricity.)
$(b)$ Ordinary rubber is an insulator. But special rubber tyres of aircraft are made slightly conducting. Why is this necessary?
$(c)$ Vehicles carrying inflammable materials usually have metallic ropes touching the ground during motion. Why?
$(d)$ A bird perches on a bare high power line, and nothing happens to the bird. A man standing on the ground touches the same line and gets a fatal shock. Why?