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About RF Cafe
1996 - 2022
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
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Inductance is the property in an electrical circuit where a change in the current flowing through that circuit induces an electromotive force (EMF) that opposes the change in current. In electrical circuits, any electric current i produces a magnetic field and hence generates a total magnetic flux Φ acting on the circuit. This magnetic flux, due to Lenz's law tends to act to oppose changes in the flux by generating a voltage (a back EMF) that counters or tends to reduce the rate of change in the current. The ratio of the magnetic flux to the current is called the self-inductance which is usually simply referred to as the inductance of the circuit.
The term "inductance" was coined by Oliver Heaviside in February 1886. It is customary to use the symbol L for inductance, possibly in honor of the physicist Heinrich Lenz. In honor of Joseph Henry, the unit of inductance has been given the name Henry (H). - Wikipedia
Standard unit = Henry (H)
|1 abH =||1||10-9||0.001||10-6||1.113 * 10-21|
|1 H =||109||1||106||1000||1.113 * 10-12|
|1 µH =||1000||10-6||1||0.001||1.113 * 10-18|
|1 mH =||106||0.001||1000||1||1.113 * 10-15|
|1 statH =||8.987•1020||8.987•1011||8.987•1017||8.987•1014||1|
Note: The prefix "ab" is used to indicate an electromagnetic unit in the centimeter-gram-second system.
The prefix "stat" is used to indicate an electrical unit in the electrostatic centimeter-gram-second system of units.