A charge of 8 mC is located at the origin. Calculate the work done in taking a small charge of `-2xx10^(-9)C` from a point P (0,0,3 cm) to a point Q (0,4 cm, 0) via a point R (0,6 cm, 9cm).

Explanation

To solve the problem of calculating the work done in moving a charge from point P to point Q via point R, we can follow these steps:

### Step 1: Understand the Given Information
- Charge at the origin, \( Q = 8 \, \text{mC} = 8 \times 10^{-3} \, \text{C} \)
- Charge to be moved, \( q_0 = -2 \times 10^{-9} \, \text{C} \)
- Point P coordinates: \( (0, 0, 3 \, \text{cm}) = (0, 0, 0.03 \, \text{m}) \)
- Point Q coordinates: \( (0, 4 \, \text{cm}, 0) = (0, 0.04 \, \text{m}, 0) \)

...