Two thin, long, parallel wires, separated by a distance d carry a current of I ampere in…
Physics · JEE Main · NTA Exams — Magnetic Effects of Current and Magnetism
Two thin, long, parallel wires, separated by a distance d carry a current of I ampere in the same direction. They will
- attract each other with a force on unit length of \(\frac{\mu_{0} \mathrm{I}^{2}}{(2 \pi \mathrm{~d})}\)
- repel each other with a force on unit length of \(\frac{\mu_{0} \mathrm{I}^{2}}{(2 \pi \mathrm{~d})}\)
- attract each other with a force on unit length of \[\frac{\mu_{0} I^{2}}{\left(2 \pi d^{2}\right)}\]
- repel each other with a force on unit length of \[\frac{\mu_{0} I^{2}}{\left(2 \pi d^{2}\right)}\]
Answer
(A) attract each other with a force on unit length of _ 0 I ^ 2 (2 ~d )
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