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Easy

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# Current is flowing in conductor shaped as shown in the figure. The radius of the curved part is and the length of straight portion is very large. The value of the magnetic field at the centre will be

## The correct answer is:

So, net magnetic field at the centre

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A long straight conductor carrying current passes through then by symmetry, all points of the circular path are equivalent and hence the magnitude of magnetic field should be same at these points.

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Young’s modulus,

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