Question

An electron iwth an initial speed of 500,000 m/s is brought to rest by an electric field.
(a) Did the electron move into a region of higher potential or lower potential?
(b) What was the potential difference that stopped the electron?
bobpursley
If the initial KE was absorbed by the system, its PE is higher.

Vq=KE change.
solve for V
Because proton is a negative

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