A square current loop (side = a, current = i2) is placed at a distance 'a' from straight wire in which current i1 is flowing through it. Net magnetic force on square loop is

Question

A square current loop (side = a, current = i2) is placed at a distance 'a' from straight wire in which current i1 is flowing through it. Net magnetic force on square loop is (A) (μ0 i1 i2/2 π),Repulsive (B) (μ0 i1 i2/4 π),Repulsive (C) (μ0 i1 i2/ π),Attractive (D) (μ0 i1 i2/8 π),Attractive

Tardigrade Admin · Accepted Answer

Correct answer is (b) (μ0 i1 i2/4 π),Repulsive

Q. A square current loop (side = a, current = i $_{2}$ ) is placed at a distance 'a' from straight wire in which current i $_{1}$ is flowing through it. Net magnetic force on square loop is

$\frac{μ _{0} i _{1} i _{2}}{2 π},$ Repulsive

$\frac{μ _{0} i _{1} i _{2}}{4 π},$ Repulsive

$\frac{μ _{0} i _{1} i _{2}}{π},$ Attractive

$\frac{μ _{0} i _{1} i _{2}}{8 π},$ Attractive

Correct answer is (b) $\frac{μ _{0} i _{1} i _{2}}{4 π},$ Repulsive

Q. A square current loop (side = a, current = i2​) is placed at a distance 'a' from straight wire in which current i1​ is flowing through it. Net magnetic force on square loop is

2πμ0​i1​i2​​,Repulsive

4πμ0​i1​i2​​,Repulsive

πμ0​i1​i2​​,Attractive

8πμ0​i1​i2​​,Attractive