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[" 2.A wire of length "^(@)L" ' is bent ...

[" 2.A wire of length "^(@)L" ' is bent in to an arc of a "],[" circle and found to subtend and angle of "],[^(6)theta" 'radians at the center.If a current of "i" ' "],[" is passed through it,the magnetic induction "],[" at the center of the circle is "]

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