There is one current carrying solenoid with 750 turns per metre. A current of 2 A is flowing through the solenoid. A rod of certain material is inserted as core inside this solenoid and the intensity of magnetization is found to be 0.12 A/m. What is magnetic susceptibility of the material used? What kind of material is this?

Explanation

To solve the problem, we will follow these steps:

### Step 1: Calculate the magnetic field intensity (H) inside the solenoid.
The formula for the magnetic field intensity \( H \) inside a solenoid is given by:
\[ H = N \cdot I \]
where \( N \) is the number of turns per unit length of the solenoid and \( I \) is the current flowing through it.
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