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Magnetic materials used for making permanent magnets (P) and magnets in a transformer (T) have different properties of the following, which property best matches for the type of magnet required? (1) T : Large retentivity, small coercivity (2) P : Large retentivity, large coercivity (3) P : Small retentivity, large coercivity (4) T : Large retentivity, large coercivity |
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Answer» Answer (2) P : Large retentivity, large coercivity Option (2) is correct as permanent magnet should have high coercivity & retentivity. |
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