A polythene piece rubbed will wool is found to have a negative charge of `3.0xx10^(-7)C`.
(a) Estimate the number of electrons transferred (from which to which )?
(b) Is there a transfer of mass from wool to polythene?

Explanation

To solve the problem step by step, we will break down both parts of the question.

### Part (a): Estimate the number of electrons transferred

1. **Identify the charge of the polythene piece**:
The charge on the polythene piece is given as \( q = -3.0 \times 10^{-7} \, \text{C} \).

2. **Understand the transfer of charge**:
...