Physics

Physics

Problem

28. A vertical length of copper wire moves to the right with a steady velocity v in the direction of a constant horizontal magnetic field B as shown. Which of the following describes the induced charges on the ends of the wire?
Top End
(A) PositiveBottom End
(B) NegativePositive
(C) ZeroNegative
(D) ZeroZero
![](https://storage.googleapis.com/diraq-contents/question-bank/question-images/8750b3057824/2025_11_20_a06764ffad9cea2721f0g-14.jpg)

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