Question: b) If the charge is initially at a distance 2.5 m above the plane, what will the change in electric potential energy (in Joules)

b) If the charge is initially at a distance 2.5 m above

b) If the charge is initially at a distance 2.5 m above the plane, what will the change in electric potential energy (in Joules) be if it is then moved to a distance 1.5 m above the plane (specify whether this change is positive/negative/zero)?

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