AP EAMCET · PHYSICS · Magnetic Effects of Current
The resultant magnetic moment of three magnetic dipoles, each of the magnetic moment \(M\) shown in the arrangement is
- A \(\sqrt{2} M\)
- B \((\sqrt{2}+1) M\)
- C \((\sqrt{2}-1) M\)
- D \(M\)
Answer & Solution
Correct Answer
(C) \((\sqrt{2}-1) M\)
Step-by-step Solution
Detailed explanation
Three magnetic moments of magnetic dipole, are shown in the figure below as, Here, \(M_1=\sqrt{M_A^2+M_B^2+2 M_A M_B \cos 90^{\circ}}\) \(\begin{aligned} & \Rightarrow \quad M_1=\sqrt{M^2+M^2+0} \\ & \Rightarrow \quad M_1=M \sqrt{2} \end{aligned}\) Now, the resultant, magnetic…
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