Question

When a charged rod is brought near the disc of a negatively charged gold leaf electroscope, it is observed that the divergence of leaves decreases. What inference do you draw about the charge on the rod?

• A. Rod has no charge
• B. Rod is positively charged
• C. Rod is negatively charged
• D. Rod is partly positive and partly negative

Answer 1

The correct option is B

Rod is positively charged

When a positive charged rod is brought near the disc of a negatively charged gold leaf electroscope, it is observed that the divergence of leaves decreases and the rod is positively charged because the electrons move from leaves to the disc with the result that negative charge on leaves decreases.