Q.
What will be magnitude of net magnetic field as shown in figure at point $P$ . (Magnetic moment of small magnets are $M$ and $\frac{4 M}{3 \sqrt{3}}$ respectively)
Given that $\left(\frac{\left(\mu \right)_{0}}{4 \pi } \frac{M}{R^{3}} = B_{0}\right)$

NTA AbhyasNTA Abhyas 2020
Solution: