Two long parallel wires separated by a distance r, carries equal current I exert a force F per unit length. The distance r is reduced to r/2 and the current in each wire is I/4. Now the force between them is

Two long parallel wires separated by a distance r, carries equal curre

1.	Two long parallel wires separated by a distance r, carries equal current I exert a force F per unit length. The distance r is reduced to r/2 and the current in each wire is I/4. Now the force between them is
Answer» `F/8` 8F 4F F ANSWER :A

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Two long parallel wires separated by a distance r, carries equal current I exert a force F per unit length. The distance r is reduced to r/2 and the current in each wire is I/4. Now the force between them is

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