A conducting loop carrying a current is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency to [2003]

Question

A conducting loop carrying a current $I$ is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency to [2003]

Smart Achievers · Accepted Answer

(2)

In a uniform magnetic field, the net force on a current-carrying loop is zero. Hence, the loop cannot move. Using Fleming's left-hand rule, we find that a force acts in the radially outward direction throughout the circumference of the conducting loop.

Solution

Q.
A conducting loop carrying a current $I$ is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency to [2003]

1 contract

2 expand

3 move towards +ve $x$ -axis

4 move towards -ve $x$ -axis.

Ans.
(2)

In a uniform magnetic field, the net force on a current-carrying loop is zero. Hence, the loop cannot move. Using Fleming's left-hand rule, we find that a force acts in the radially outward direction throughout the circumference of the conducting loop.

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Solution

Q. A conducting loop carrying a current I is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency to [2003]