Physics

Physics

Problem

Two long parallel wires

A

and

B

carry currents

I_{A} = 2\,\text{A}

and

I_{B} = 6\,\text{A}

in opposite directions. Wire

A

exerts a magnetic force

F_{A}

on Wire

B

. Wire

B

exerts a magnetic force

F_{B}

on Wire

A

. Determine the ratio of the magnitudes

F_{A} : F_{B}

and the nature of the force between them.

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