Question

When a rubber sheet is rubbed with woolen carpet, the carpet is found to acquire a positive charge of 8 × 10^-7 C 

1. In the above process charging is by

• conduction
• friction
• induction
• polarization

2. Among Rubber shoe and woolen carpet which one acquire both mass and charge during rubbing? Explain.

Answer 1

1. In the above process charging is by:

• Friction

2. Carpet is found to be positive body which means that electrons are lost from carpet to rubber shoe. Hence rubber shoe acquires charge and mass.