Question:
Define coefficient of self-induction.
Define coefficient of self-induction.
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Self-induction is the electrical inertia of a coil.
Updated On: Oct 8, 2025
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Solution and Explanation
Step 1: Definition.
When current in a coil changes, an emf is induced in the coil itself (self-induced emf).
Step 2: Formula.
\[ e = -L \frac{di}{dt}, \] where $L$ is the coefficient of self-induction.
Step 3: Conclusion.
Thus, \[ L = \frac{e}{-di/dt}. \]
When current in a coil changes, an emf is induced in the coil itself (self-induced emf).
Step 2: Formula.
\[ e = -L \frac{di}{dt}, \] where $L$ is the coefficient of self-induction.
Step 3: Conclusion.
Thus, \[ L = \frac{e}{-di/dt}. \]
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