What is the magnetic field at O due to current carrying long wire, forming a loop as…
Physics · JEE Advanced · NTA Exams — Magnetic Effects of Current and Magnetism
What is the magnetic field at O due to current carrying long wire, forming a loop as shown in figure?
- \(\frac{\mu_{0} \mathrm{I}}{2 \pi \mathrm{a}}\)downwards
- \(\frac{3 \mu_{0} \mathrm{I}}{2 \pi \mathrm{a}}\)outwards
- \(\frac{\mu_{0} \mathrm{I}}{2 \pi \mathrm{a}}\)outwards
- \(\frac{3 \mu_{0} \mathrm{I}}{2 \pi \mathrm{a}}\)downwards
Answer
(D) 3 _ 0 I 2 a downwards
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