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Which of the following statements about the magnetic moment of a current-carrying loop is incorrect?

1. The magnetic moment for a single turn is equal to iA.
2. The magnetic moment for N turns is given by iNA amp-m².
3. Here, A represents the area of the current loop.
4. All of the above statements are correct.

Correct answer: All of the above statements are correct.

Solution

The question seems to be a statement rather than a proper MCQ. None of the options directly address a question or provide a clear context for selection.

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