self-induction
Coil resists current change
Self-induction is the phenomenon where a changing electric current in a conductor creates a magnetic field that induces a voltage opposing the change in that same conductor.
This property, measured in henrys, causes circuits to resist sudden changes in current flow.
Coils designed to exploit this effect are called inductors or chokes: The self-induction of the coil smooths out voltage spikes.
Current-carrying wire helix
- toroidDoughnut-shaped geometric surface
- chokeObstruct breathing or airflow
- coilWound circular arrangement
- transformerVoltage-altering electrical device
relay · winding · henry · iron core · saturation · shielding
Voltage-altering electrical device
- generatorElectricity-producing machine
- alternatorMechanical-to-electrical energy converter
- motorEnergy-to-motion converter
- ignition coilVoltage transformer for engines
Opposition to alternating current
- impedanceAC circuit opposition
- resonanceAmplified oscillation at natural frequency
- transientTemporary, soon departing
- phase shiftChange in wave timing
alternating current · direct current · capacitance · damping · oscillation · voltage spike · flyback · snubber
Field strength through surface
- electromotive forceEnergy moving charges through circuit
- energy storageCapturing power for later
- magnetic fieldForce zone around magnets
Force linking charge and magnetism
- electrodynamicsStudy of charge interactions
- field theoryStudy of spatial phenomena
- permeabilityAbility to transmit fluids
- reluctanceDisinclination to act
solenoid
Current-carrying wire helix
- toroidDoughnut-shaped geometric surface
- chokeObstruct breathing or airflow
- coilWound circular arrangement
transformer · relay · winding · henry · iron core · saturation · shielding
transformer
Voltage-altering electrical device
- generatorElectricity-producing machine
- alternatorMechanical-to-electrical energy converter
- motorEnergy-to-motion converter
reactance
Opposition to alternating current
- impedanceAC circuit opposition
- resonanceAmplified oscillation at natural frequency
- transientTemporary, soon departing
phase shift · alternating current · direct current · capacitance · damping · oscillation · voltage spike · flyback · snubber
magnetic flux
Field strength through surface
- electromotive forceEnergy moving charges through circuit
- energy storageCapturing power for later
- magnetic fieldForce zone around magnets
electromagnetism
Force linking charge and magnetism
- electrodynamicsStudy of charge interactions
- field theoryStudy of spatial phenomena
- permeabilityAbility to transmit fluids