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Two infinitely long wires carry currents 4A and 3A placed along X-axis and Y-axis respectively.
Magnetic field at a point P(0,0,d)m will be _________T.

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$\frac{4 μ_{0}}{2 π d}$

$\frac{3 μ_{0}}{2 π d}$

$\frac{7 μ_{0}}{2 π d}$

$\frac{5 μ_{0}}{2 π d}$

answer is D.

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Detailed Solution

$B = \frac{μ_{o} i}{2 π d}, B_{r} = \sqrt{B_{1}^{2} + B_{2}^{2}}$

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