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IEVref: | 131-12-20 | ID: | |

Language: | en | Status: Standard | |

Term: | differential inductance | ||

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Symbol: | L_{d}
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Definition: | for an inductive two-terminal element with terminals A and B, derivative of the linked flux Ψ between the terminals with respect to the electric current i in the element:$L}_{\text{d}}=\frac{\mathrm{d}\Psi}{\mathrm{d}i$ where the sign of the linked flux is determined by taking the voltage, in the time integral defining it, as the difference of the electric potentials at A and B, and where the current is taken as positive if its direction is from A to B and negative in the opposite case NOTE – For an ideal inductor, the differential inductance | ||

Publication date: | 2008-09 | ||

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Internal notes: | 2017-06-02: Cleanup - Remove Attached Image 131-12-20en.gif | ||

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$L}_{\text{d}}=\frac{\mathrm{d}\Psi}{\mathrm{d}i$

where the sign of the linked flux is determined by taking the voltage, in the time integral defining it, as the difference of the electric potentials at A and B, and where the current is taken as positive if its direction is from A to B and negative in the opposite case
_{d} is equal to its inductance *L*.