Question

If number of turn, area and current through it is given by n, A and i respectively then its magnetic moment will be : -

• A. niA
• B. n2 iA
• C. niA2
• D. $\frac{ni}{\sqrt A}$

Answer 1

Answer: (A)

niA

Answer 2

The correct option is (A): niA.
Provided: Number of turns = n, Area = A, Current = I.
Solution: Here, the formula to directly calculate the magnetic moment (M) is M = nA.