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  4. A conducting loop carrying a current I is placed in a uniform magnetic field pointing into the plane of the paper as shown. Then, the loop will have a tendency to <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-lymjmnhr8owwrii9.jpg />

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Q. A conducting loop carrying a current $I$ is placed in a uniform magnetic field pointing into the plane of the paper as shown. Then, the loop will have a tendency to
Question

NTA AbhyasNTA Abhyas 2022

Solution:

The net force on a current-carrying loop in a uniform magnetic field is zero. Hence, the loop cannot translate.
Solution
From Fleming's left-hand rule, we can see that if the magnetic field is perpendicular to paper inwards and current in the loop is clockwise the magnetic force $F_{m}$ on each element of the loop is radially outwards or the loop will have the tendency of expanding.