Two identical long conducting wires AOB and COD are placed at a right angle to each…
Physics · Class 12 · CBSE — Moving Charges and Magnetism
Two identical long conducting wires AOB and COD are placed at a right angle to each other, with one above the other such that O is their common point for the two. The wires carry I1 and I2 currents, respectively. Point P is lying at distance d from O along a direction perpendicular to the plane containing the wires. The magnetic field at the point P will be:
- \(\frac{\mu_{0}}{2 \pi d}\left(I_{1}^{2}+I_{2}^{2}\right)^\frac {1 }{ 2}\)
- \(\frac{\mu_{0}}{2 \pi d}\left(\frac{I_{1}}{I_{2}}\right)\)
- \(\frac{\mu_{0}}{2 \pi d}\left(I_{1}+I_{2}\right)\)
- \(\frac{\mu_{0}}{2 \pi d}\left(I_{1}^{2}-I_{2}^{2}\right)\)
Answer
(A) _ 0 2 d (I_ 1 ^ 2 +I_ 2 ^ 2 )^ 1 2
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