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प्रश्न
Materials suitable for permanent magnet, must have which of the following properties?
विकल्प
- High retentivity, low coercivity and high permeability.
- Low retentivity, low coercivity and low permeability.
- Low retentivity, high coercivity and low permeability.
- High retentivity, high coercivity and high permeability.
MCQ
उत्तर
High retentivity, high coercivity and high permeability.
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