Calculate magnetic field due to a bar magnet 2 cm long having pole strength 100 Am at a point 20 cm from centre of bar magnet .
(i) On axial point `" "` (ii) On normal bisector

Explanation

To solve the problem of calculating the magnetic field due to a bar magnet at a point 20 cm from its center, we will follow these steps for both the axial point and the normal bisector.

### Given Data:
- Length of the bar magnet, \(2L = 2 \, \text{cm} = 2 \times 10^{-2} \, \text{m}\)
- Pole strength, \(P = 100 \, \text{A m}\)
- Distance from the center of the magnet to the point, \(R = 20 \, \text{cm} = 20 \times 10^{-2} \, \text{m}\)

### Step 1: Calculate the Magnetic Moment (M)
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