In are oil drop experiment , the following charges (in arhitrary units )were found an a series of oil droplets .Calculate the magnitude of the charge on the elecron.
`3 xx 10^(-15),9xx 10^(-15),12 xx 10^(-15), 18 xx 10^(-15)`

Explanation

To calculate the magnitude of the charge on the electron from the given charges in the oil drop experiment, we will follow these steps:

### Step 1: Identify the charges
The charges found on the oil droplets are:
- \(3 \times 10^{-15}\) C
- \(9 \times 10^{-15}\) C
- \(12 \times 10^{-15}\) C
- \(18 \times 10^{-15}\) C
...