PLEASE EXPLAIN +100 V + 30 V (3) 14 points] Pat and Kody are given two large pla

Question

PLEASE EXPLAIN +100 V + 30 V (3) 14 points] Pat and Kody are given two large plates which are charged to the voltages shown. They are discussingw when you place a free charge between the plates and move it. They are told that they can ignore the effects of the edge of the plates. Pat: When you move a free "test" charge from a location near the right plate to a location near the left plate, the charge will move from a region of lower electric potential to one of higher electric potential near the left plate. This is true regardless of the sign or size of a free "test" charged placed near the left plate. Kody: the potential energy of the charge will have decreased. This is because the force on a negative charge due to the plate is to the right and negative work is done on it by the electric field while moving it to the left. I'm not sure if you are right Pat. However I know that, assuming the "test" charge is negative, Using the definition of change in potential energy we saw in lab, AUab we can potential energy decreased (we take point b to be near the right plate and point a to be near the left plate and the instructor has confirmed the equation is correct) 1a.--wang, we can see that the Do you agree with Pat, Kody, both, or neither? Briefly explain your reasoning.

Explanation / Answer

The change in potential energy is proportional to the magnitud of electric field between plates. Since both plates are positive charged there is not electric field between them so there is not change in the potential energy of the test charge, regardless its sign.

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