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प्रश्न
When a current in a circular loop is equivalently replaced by a magnetic dipole ______.
विकल्प
- the pole strength m of each pole is fixed
- the distance d between the poles is fixed
- the product md is fixed
- None of these
MCQ
रिक्त स्थान भरें
उत्तर
When a current in a circular loop is equivalently replaced by a magnetic dipole the product md is fixed.
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