In a region of uniform electric field , as an electron travels from A to B, it slows from `u_(A) = 6.1 xx 10^(6) m //s` to `u_(B) = 4.5 xx 10^(6) m//s` . What is its potential change `DeltaV = V_(B) -V_(A)` in volts ?

Options

A. 18
B. `-18`
C. `+48`
D. `-48`

Explanation

To find the potential change \( \Delta V = V_B - V_A \) as an electron travels from point A to point B in a uniform electric field, we can use the relationship between kinetic energy and electric potential energy.

### Step-by-Step Solution:

1. **Identify Initial and Final Velocities:**
- Given:
- \( u_A = 6.1 \times 10^6 \, \text{m/s} \) (initial velocity at point A)
- \( u_B = 4.5 \times 10^6 \, \text{m/s} \) (final velocity at point B)
...