Magnetic Effects of Current and Magnetism Part 1

Section: Physics

Question : 31 of 100

Marks: +1, -0

A very long wire ABDMNDC is shown in figure carrying current I. AB and BC parts are straight, long and at right angle. At D wire forms a circular turn DMND of radius R. AB, BC parts are tangential to circular turn at N and D. Magnetic field at the centre of circle is :

[8 Jan 2020 Shift 2]

µ0I
2R
µ0I
2πR
(π+1)
µ0I
2πR
(π+
1
√2
)
µ0I
2πR
(π−
1
√2
)

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