Question

When an ebonite rod is rubbed with fur, the fur develops a charge which is :

• A. positive
• B. negative
• C. neutral
• D. none of these

Answer 1

The correct option is A positive

Answer is A.

When we rub fur with ebonite rod, the chemical bond is formed between some parts of the two surface. Rod has its electron more tightly bound than fur. So, fur donates electrons to the rod while electrons from rod won't come out. Due to excess of electrons in rod, it becomes negatively charged while the fur with lost electrons becomes deficient of electrons. Thus, fur becomes positively charged.