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प्रश्न
Identify the following magnetic materials :
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उत्तर
For Diamagnetic materials, xm < 0
For paramagnetic materials, xm > 0
For superparamagnetic materials, xm >>0
(i) if xm =-0.00015 < 0, the material is Diamagnetic.
(ii) if xm = 10-5 > 0, the material is paramagnetic because the value of susceptibility is greater than zero but has a very small value.
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| (a) | (b) |
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| List-I (Material) | List-II (Susceptibility) | ||
| A. | Diamagnetic | I. | χ = 0 |
| B. | Ferromagnetic | II. | 0 > χ ≥ −1 |
| C. | Paramagnetic | III. | χ >> 1 |
| D. | Non-magnetic | IV. | 0 < χ < ε |
Choose the correct answer from the options given below:
