Final answer:
When a vector travels away from the positive electrode, a negative deflection results.
Step-by-step explanation:
When a vector travels away from the positive electrode, a negative deflection results.
This can be observed in the deflection of cathode rays by an electric field. As the cathode rays travel towards the positive electrode, they are deflected towards it, indicating a negative charge. This demonstrates that a negative charge results in a deflection away from the positive electrode.