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A magnet is 10cm long and its pole stren...

A magnet is 10cm long and its pole strength is 120 CGS units (1 CGS unit of pole strength `= 0.1 A m)`. Find the magnitude of the magnetic field `B` at a point on its axis at a distance 20cm from it.

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To solve the problem of finding the magnitude of the magnetic field \( B \) at a point on the axis of a magnet, we will follow a systematic approach. ### Step-by-Step Solution: 1. **Identify Given Data:** - Length of the magnet \( L = 10 \, \text{cm} = 0.1 \, \text{m} \) - Pole strength \( m = 120 \, \text{CGS units} \) - Conversion of pole strength to SI units: \( 1 \, \text{CGS unit} = 0.1 \, \text{A m} \) ...
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