A permanent magnet in the shape of a thin cylinder of length `10cm` has `M=10^6A//m`. Calculate the magnetisation current `I_M`. (Here M is the intensity of magnetisation).

Explanation

To solve the problem of calculating the magnetization current \( I_M \) for a permanent magnet in the shape of a thin cylinder, we can follow these steps:

### Step 1: Understand the relationship between magnetization current and intensity of magnetization
The intensity of magnetization \( M \) is defined as the magnetization current \( I_M \) per unit length of the magnet. The relationship can be expressed as:
\[ M = \frac{I_M}{L} \]
where \( L \) is the length of the magnet.
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