Two short magnets of equal dipole moments M are fastened perpendicularly at their centres Find the effective magnetic moment.

Explanation

To find the effective magnetic moment of two short magnets with equal dipole moments \( M \) that are fastened perpendicularly at their centers, we can follow these steps:

### Step 1: Understanding the Configuration
We have two magnetic dipoles, each with a dipole moment \( M \). They are oriented at a right angle (90 degrees) to each other.

### Step 2: Representing the Dipole Moments as Vectors
Since magnetic dipole moments are vector quantities, we can represent them as vectors. Let’s denote the first dipole moment as vector \( \vec{M_1} \) and the second dipole moment as vector \( \vec{M_2} \).

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