A +1uC point charge is moved from point A to B in the uniform electric field. Wh

Question

A +1uC point charge is moved from point A to B in the uniform electric field. Which one of the following statements true concerning the potential energy of the point charge? (pic is kid of inverted bcoz i took pic with webcam. so plz just try to visualize it right way or maybe redraw it correctly).

a) Potential energy increases by 6 uJ

b) decreases by 6 uJ

c) decreases by 9 uJ

d) increases by 9 uJ

e) increases by 10.8 uJ

f) decreases by 10.8 uJ

(* explanation needed otherwise will get negative feedback.)

Explanation / Answer

(c) change in potential energy = -Fx

x=displacement in the force direction

Change in U= -F*3

= -Eq*3

= -3*1*3

= -9

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