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A piece of wire carrying a current of 6.00 A is bent in the form of a circular arc of radius 10.0 cm
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A piece of wire carrying a current of 6.00 A is bent in the form of a circular arc of radius 10.0 cm, and it subtends an angle of `120^@` at the centre. Find the magnetic field B due to this piece of wire at the centre.
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