Question

Function of parts of gold-leaf electroscope

Answer 1

Answer:

The gold leaf of electroscope is used to know the presence of charge.

Explanation:

To determine the presence of charge, the electroscope contains two light leaves of gold, aluminium or other metal. The gold leaves are connected to a metal disc by a highly conducting rod. When any charged object touches the disc, the charge spread everywhere. When similar charges appear in the gold leaves, the leaves will repulse each other and create a gap between them.

The reduction of gap between two gold leaves will indicate the electroscope has negative charge. If the gap increases, then it will indicate the presence of positive charge.