Question

Susceptibility of ferromagnetic substance is

• A. 1
• B. -1
• C. \(>1\)
• D. \(<1\)

Hint:

Ferromagnetic materials are strongly magnetised, so their susceptibility is large and positive.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept
Susceptibility \(\chi_m\) measures how strongly a material is magnetised in a field.

Step 2: Ferromagnetic case
Ferromagnetic materials have a very large positive \(\chi_m\), much greater than 1 (typically \(10^2\) to \(10^5\)).

Step 3: Compare the options
Only the option \(>1\) fits.

Final Answer:
Susceptibility of a ferromagnetic substance is greater than 1. \[ \boxed{\text{(C) }>1} \]