Potential and field at two electric plates

AI Thread Summary
The discussion centers on the electric potential and field between two plates, confirming that work is required to move a positive test charge against the electric field from one plate to another. The equation V=kq/r is deemed irrelevant to the question, as it pertains to absolute potential rather than the specific scenario discussed. It is noted that the potential at the midpoint between the positive and negative plates is zero. The participants agree that the other answers provided are incorrect. Overall, the conversation emphasizes the relationship between electric potential, work, and the behavior of charges in an electric field.
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Yes on both A and C. My explanation for A would be that work needs to be done to push a positive test charge from B to A against the force of the electric field. Your V=kq/r is obscure (unrelated to this question) because it is the absolute potential or work/charge for moving a charge from infinite distance into a position that is distance r away from charge q. It does tell you that the potential midway between the positive and negative plates is zero, though.
 
and the other answers are wrong, correct?
 
Correct.
 
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