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Physics-

General

Easy

Question

Wire-1 in fig is oriented along the Y-axis and carries a steady current I₁ A rectangular circuit located to the right of the wire carries a current $I subscript 2 end subscript$ Find the force experienced by the top of the horizontal wire (wire-2) of the rectangular circuit.

$[\frac{μ_{0} I_{1} I_{2}}{2 π} l n (1 + \frac{b}{a}) \hat{j}]$
$[\frac{μ_{0} I_{1} I_{2}}{2 π} l n (1 + \frac{b}{a}) (- \hat{j})]$
$[\frac{μ_{0} I_{1} I_{2}}{2 π} l n (1 + \frac{b}{a}) (- \hat{i})]$
$[\frac{μ_{0} I_{1} I_{2}}{2 π} l n (1 + \frac{b}{a}) (\hat{i})]$

The correct answer is: $open square brackets fraction numerator mu subscript 0 end subscript I subscript 1 end subscript I subscript 2 end subscript over denominator 2 pi end fraction l n invisible function application open parentheses 1 plus fraction numerator b over denominator a end fraction close parentheses stack j with hat on top close square brackets$

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