MHT CET · Physics · Magnetic Properties of Matter
In the hysteresis curve the value of magnetization (B) which will be present in a substance when value of magnetizing force \((\mathrm{H})\) is made zero \((\mathrm{H}=0)\) is called as
- A coercivity
- B retentivity
- C domain
- D saturation
Answer & Solution
Correct Answer
(B) retentivity
Step-by-step Solution
Detailed explanation
Retentivity or remanence is the ability of a magnetic substance to retain magnetism even in the absence of a magnetising field.
\(\therefore \quad\) Retentivity corresponds to the value of \(\mathrm{B}\) when value of \(\mathrm{H}\) is zero.
\(\therefore \quad\) Retentivity corresponds to the value of \(\mathrm{B}\) when value of \(\mathrm{H}\) is zero.
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