Definition:Inductance
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Definition
Inductance is the property of an electrical conductor by which a change in electric current through it induces an electromotive force in both the conductor itself and also in any nearby conductors.
Symbol
The usual symbol used to denote inductance is $L$.
Dimension
The dimension of measurement of inductance is $\mathsf {M L^2 T^{-2} I^{-2} }$.
This arises from its definition as magnetic flux per unit current:
- $\dfrac {\mathsf {M L^2 T^{-2} I^{-1} } } {\mathsf I}$
Unit
The SI unit of inductance is the henry $\mathrm H$:
- $1 \, \mathrm H = 1 \, \mathrm {Wb} \, \mathrm A^{-1}$
In the CGS unrationalised electromagnetic system, the base unit of inductance is the abhenry $\mathrm {abH}$.
Conversion Factors
\(\ds \) | \(=\) | \(\ds 1\) | henry | |||||||||||
\(\ds \text {corresponds to}\) | \(\) | \(\ds 10^9\) | abhenry (or e.m.u. of inductance) | |||||||||||
\(\ds \text {corresponds to (approximately)}\) | \(\) | \(\ds \dfrac 1 9 \times 10^{-11}\) | e.s.u. of inductance |
Also see
- Results about inductance can be found here.
Sources
- 1969: J.C. Anderson, D.M. Hum, B.G. Neal and J.H. Whitelaw: Data and Formulae for Engineering Students (2nd ed.) ... (previous) ... (next): $1.$ Units and Abbreviations: $1.2$ SI units $(2)$ Derived units