MHT CET · Physics · Magnetic Effects of Current
A wire of magnetic material of length '2L' and magnetic moment 'M' is bent at the centre to form 'L' shaped wire. Its magnetic moment is
- A \(\frac{\text { M }}{\sqrt{2}}\)
- B M
- C \(\frac{\text { M }}{\sqrt{3}}\)
- D \(\frac{\text { M }}{2}\)
Answer & Solution
Correct Answer
(A) \(\frac{\text { M }}{\sqrt{2}}\)
Step-by-step Solution
Detailed explanation
Each half of the needle will possess a dipole moment \(\frac{\vec{M}}{2}\).
Now, the \(L\) shape is equivalent to two dipole arranged perpendicular to each other . So, effective dipole moment is given by
Now, the \(L\) shape is equivalent to two dipole arranged perpendicular to each other . So, effective dipole moment is given by
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