<p>Test #2 MC, question 45.</p>
<p>According to them, the answer is A. I thought change in potential energy equals charge times voltage, not charge times voltage times distance.</p>
<p>Also, for question 47. I've done the right-hand rule it and looks like loop B would have to produce flux into the page to its right to oppose the decreasing flux into the page from loop A to its left. So the loop would have to be counter-clockwise as well. Is there something I'm doing wrong?</p>