Find out expression for magnetic field due to a current carrying arc of wire using Biot-savart law
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The magnetic field due to a finite length of current-carrying wire is found by integrating Equation 12.2. 2 along the wire, giving us the usual form of the Biot-Savart law. →B=μ04π∫wireId→l׈rr2. Since this is a vector integral, contributions from different current elements may not point in the same direction.
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