Magnetic field intensity H at the center of a circular loop of radius r carrying current…
Physics · JEE Main · NTA Exams — Magnetic Effects of Current and Magnetism
Magnetic field intensity H at the center of a circular loop of radius r carrying current '\(\text { I }\)' in emu system is
- \(\frac{f}{I} \text { oersted }\)
- \(\frac{2 \pi J}{r} \text { oersted }\)
- \(\frac{I}{2 \pi r} \text { cersted }\)
- \(\frac{2 \pi r}{I} \text { cersted }\)
Answer
(B) 2 J r oersted
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