Moving Charges and Magnetism

Question: Two thin, long, parallel wires, separated by a distance ‘d’ carry a current of ‘i’ A in the same direction. They will

1) Attract each other with a force of ${\mu _0}{i^2}/(2\pi {d^2})$

2) Repel each other with a force of ${\mu _0}{i^2}/(2\pi {d^2})$

3) Attract each other with a force of ${\mu _0}{i^2}/(2\pi d)$

4) Repel each other with a force of ${\mu _0}{i^2}/(2\pi d)$

Solution:

Explanation: No Explanation

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