A particle of charge q and mass m is moved throught a distance d (from point a t

Question

A particle of charge q and mass m is moved throught a distance d (from point a to point b) within a region of constant, uniform electric field. Let the work done by the electric field during this motion be We and let the potential difference that the particle moves through be ChangeV. Below, indicate how We and ChangeV change (or state that there is no change as the other other variables are changed.
The mangitude of the field is doubled (effect on We) (Effect on ChangeV)
The sign of the charge is changed
The direction of the field is reversed
The mass of the particle is halved
The particle move from b to a instead of a to b
The sign of the fields horizontal component is changed
The magnitude of the charge is doubled
Option for answers are no change, double, sign changed, and cannot tell
Need the effects for both We and ChangeV for each scenario

Explanation / Answer

we = qdv dV = - E.ds double,double sign changed, no change sign changed,sign changed no change, no change sign changed,sign changed no change, no change double, no change

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