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
Further dilate
Start oscillating
Collapse
Remain unaltered
Can we neglect the quantization of charge ? If yes, then mention the situation ?
Mention types of methods of charging the body.
Write unit and value of fundamental electric charge.
Discuss the historical observation of frictional electrics.
What is Greek meaning of electrics ?