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A reatangular current loop is in an arbi...

A reatangular current loop is in an arbitrarty orientation in an external magnetic field. Is any work required to rotate the loop about an axis perpendicular to its plane?

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To determine if any work is required to rotate a rectangular current loop about an axis perpendicular to its plane in an external magnetic field, we can analyze the situation using the concepts of magnetic moment and potential energy. ### Step-by-Step Solution: 1. **Understanding the System**: - We have a rectangular current loop placed in an external magnetic field. The loop can be oriented arbitrarily in the magnetic field. - The magnetic field is denoted as **B** and the current flowing in the loop creates a magnetic moment **m**. ...
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