An arrangement of three parallel straight wires placed perpendicular to plane of paper…
Physics · Class 12 · CBSE — Moving Charges and Magnetism
An arrangement of three parallel straight wires placed perpendicular to plane of paper carrying same current along the same direction is shown in the figure. The magnitude of force per unit length on the middle wire W is given by
- \(\frac{\mu_{0} I^{2}}{\sqrt{2} \pi d}\)
- \(\frac{\mu_{0} I^{2}}{2 \pi d}\)
- \(\frac{2 \mu_{0} I^{2}}{\pi d}\)
- \(\frac{\sqrt{2} \mu_{0} I^{2}}{\pi d}\)
Answer
(A) _ 0 I^ 2 2 d
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