If the number of turns, area, and current through a coil are given by \(n\), \(A\) and \(i\) respectively then its magnetic moment will be: 
1. \(niA\)
2. \(n^{2}iA\)
3. \(niA^{2}\)
4. \(\frac{ni}{\sqrt{A}}\)

Subtopic:  Magnetic Moment |
 92%
Level 1: 80%+
AIPMT - 2001
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