A proton (+1.6 × 10^-19 C) moves 10 cm on a path in the direction opposite to a uniform electric field of strength 3.0 N/C. How much work is done on the proton by the electrical field?

a. 4.8 × 10^-20 J
c. zero
b. 1.6 × 10^-20 J
d. -4.8 × 10^-20 J


D

Physics & Space Science

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