Chapter 24, Problem 88A

To determine

The direction of the current carrying wire with respect to the magnetic field such that the force experienced by the wire is minimized.

Explanation of Solution

Introduction:

When a current carrying wire is placed in an external magnetic field it experiences force. Fleming’s left-hand rule describes the way to determine the direction of the force experienced by the wire when current flows through it in a magnetic field.

The current carrying wire in the influence of the magnet will experience force. This is experienced because the current carrying wire creates a magnetic field of its own. In the external field the interaction results in force experienced by the wire. To minimize the force, the wire can be kept parallel to the external magnetic field which will become zero as the force experienced is a function of sine.

Conclusion:

To minimize the force, the wire can be kept parallel to the external magnetic field which will become zero as the force experienced is a function of sine.