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Two parallel connecting wires placed at a distance d apart carry equal currents in the same direction then the intensity of the magnetic field at a point between them will be

$\begin {array} {1 1} (a)\;\large\frac{\mu_0i}{2 \pi d} & \quad (b)\;\large\frac{\mu_0i}{ \pi d} \\ (c)\;\large\frac{\mu_0i}{ \pi d^2} & \quad (d)\;Zero \end {array}$


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The fields due to the two wires will be in the opposite direction and hence will cancel out
Ans : (d)
answered Feb 22, 2014 by thanvigandhi_1

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