(a) Charge negatively the gold leaf electroscope by conduction i.e.
To detect the kind of charge by a positively charged gold leaf electroscope touching the disc of GL.E. with – vely charged ebonite rod. The leaves diverge (because of repulsion)Note the divergence as show in figure (a).
(b) Bring a charged body to be tested in contact with the disc. If divergence in leaves increase, it has similar charge i.e. negative as shown in figure (b).
(c) If divergence decrease, the body has an opposite charge i.e. positive charge as shown in figure (c).
