Coil Magnetic Energy formula |
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| \( E \;=\; \dfrac{ 1 }{ 2 } \cdot L \cdot I^2 \) | ||
| Symbol | English | Metric |
| \( E \) = Magnetic Energy stored in the Coil | \(lbf\) | \(J\) |
| \( L \) = Inductance of the Coil | \(H\) | \(H\) |
| \( I \) = Current Flowing Through the Coil | \(A\) | \(A\) |
Coil magnetic energy, abbreviated as\(E\), is the energy stored in the magnetic field of an inductor or coil, is the energy accumulated in the magnetic field generated when an electric current flows through a coil of wire. When current passes through the coil, it creates a magnetic field around it, and the strength of this field depends on the current, the number of turns in the coil, and the coil's geometry. This stored energy can be released or transferred when the current changes, such as when the circuit is interrupted, causing the magnetic field to collapse and induce a voltage. This is fundamental in devices like transformers, electric motors, and inductors used in electronic circuits, where the ability to store and release magnetic energy is critical to their operation. The concept is rooted in electromagnetic theory and plays a key role in understanding how energy is managed in electrical systems.
