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Magnetic Moment

 

Magnetic Moment Formula

\( \mu \;=\;  \dfrac{ I  }{  A }   \)     (Magnetic Moment)

\( I \;=\;  \mu \cdot A \)

\( A \;=\;  \dfrac{ I  }{  \mu }   \)

Symbol English Metric
\( \mu \)  (Greek Symbol mu) = Magnetic Moment \(A \;/\; ft^2\) \(A \;/\; m^2\)
\( I \) = Current in the Loop \(A\) \(A\)
\( A \) = Area of the Loop \(ft^2\) \(m ^2\)

Magnetic moment, abbreviated as \( \mu \)  (Greek Symbol mu), represents the strength and orientation of a magnetic source, such as a current loop, a bar magnet, or even subatomic particles like electrons.  It essentially describes how strongly an object interacts with an external magnetic field and the direction of this interaction.  The magnetic moment is a vector quantity, meaning it has both magnitude and direction, with its direction typically defined by the right-hand rule relative to the current flow or spin orientation. 

In practical terms, a larger magnetic moment indicates that the object can produce a stronger magnetic field or experience a greater torque when placed in an external magnetic field.

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