The magnetic compass is not made by arranging magnetic needle inside a soft iron case. Why?
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Reason:
- Permanent magnetism cannot be obtained using a soft iron case.
- Errors due to eddy currents
- Cannot point the true north
- Quadrantral deviation
- Induced magnetism
- Asymmetrical arrangement
- Changing induction
Hence, The magnetic compass is not made by arranging magnetic needle inside a soft iron case.
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