Question

what is meant by electroscope? why metal rod and leaves are used in construction of electroscope? ​

Answer 1

• Since electroscope is used to detect the presence of charge. So through it we can find whether a body is charged or uncharged. Therefore the body to be detected is brought close enough to the metal knob. When a charged object touches the knob at the top of the rod, charge flows through the rod on to the leaves.