JEE Main 17 March 2021 Shift 2 Solved Paper

Section: Physics

Question : 12 of 90

Marks: +1, -0

A hairpin like shape as shown in figure is made by bending a long current carrying wire. What is the magnitude of a magnetic field at point P which lies on the centre of the semicircle?

[17 Mar 2021 Shift 2]

µ0l
4πr
(2−π)
‌
µ0I
4πr
(2+π)
‌
µ0I
2πr
(2+π)
‌
µ0I
2πr
(2−π)

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