A wire is bent into shape as shown in figure and magnetic field is measured at P 1 when…
Physics · JEE Advanced · NTA Exams — Magnetic Effects of Current and Magnetism
A wire is bent into shape as shown in figure and magnetic field is measured at P1 when current in wire is I, the same wire is then formed into shape shown in figure .Magnetic field is measured at P2 when current is again I . If total length of the wire is same in each case .What is ratio of B1 to B2.
- \(\frac{1}{2 \pi}\)
- \(\frac{3 \sqrt{3}}{2 \pi}\)
- \(\frac{8 \sqrt{2}}{\pi^{2}}\)
- \(\frac{16 \pi^{2}}{5}\)
Answer
(C) 8 2 ^ 2
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