The magnetic force between wires as shown in figure is :-
The magnetic force between wires as shown in figure is :-
- A
$\frac{{{\mu _0}i{I^2}}}{{2\pi }}\ln \left( {\frac{{x + l}}{{2x}}} \right)$
- B
$\frac{{{\mu _0}i{I^2}}}{{2\pi }}\ln \left( {\frac{{2x + l}}{{2x}}} \right)$
- C
$\frac{{{\mu _0}i{I}}}{{2\pi }}\ln \left( {\frac{{x + l}}{x}} \right)$
- D
None of these
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