Question

When a positively charged glass rod is made to touch the metal knob of an electroscope, the leaves of the electroscope become and are each other.

• A. positively charged
• B. negatively charged
• C. attracted towards
• D. moved away from

Answer 1

Answer: (A), (D)

The correct options are
A positively charged
D moved away from

When a positively charged glass rod touches the metal knob of a gold leaf electroscope, the electrons travel from the leaves to the metal rod. As a result, the leaves become positively charged. Since the charge on both the leaves is the same, they are repelled away from each other, and hence, they spread out.