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Two parallel wires carrying current in t...

Two parallel wires carrying current in the same direction attract each other while two beams of electrons travelling in the same direction repel each other. Why?

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A current carrying wire sets up a magnetic field around it . If another wire is placed near it , it will experience a force due to the first wire and direction of this force is towards the first wire according to Fleming.s left hand rule.
Hence, the wires attract each other.
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