induction
in-DUK-shun
/ɪnˈdʌkʃən/
The production of an electromotive force across an electrical conductor in a changing magnetic field.
Focuses on generating voltage or current without direct physical contact between conductors.
The story behind the word. From Latin 'inductio', meaning a leading in. In physics, Michael Faraday used it to describe how moving magnets lead electric currents into motion inside wire loops.
Word relationships
- generation: Broader term for producing power, whereas induction specifically requires field movement.
- conduction: Conduction transfers charge through direct contact, whereas induction transfers energy through fields.
Commonly confused with
- conduction: Conduction requires direct physical contact; induction operates across space via changing magnetic fields.
Word family
- induce (verb): To bring about or produce by electromagnetic influence.
- inductive (adjective): Relating to or causing electrical induction.
Collocations
- electromagnetic induction
- induction motor
- induction coil
- mutual induction
Example sentences
- "Faraday proved that electromagnetic induction could turn mechanical movement into continuous electric power." Electrical engineering historical account
- "An induction cooktop heats cookware directly through rapidly alternating magnetic fields." Household appliances
Memory hook
IN-duction IN-troduces current without direct contact. Leading current into a wire without touching it.
When not to use
Do not confuse with mathematical induction or formal organizational onboarding, though they share historical Latin roots.
Fun facts
- Wireless smartphone charging pads use electromagnetic induction between coils in the pad and phone.
Related words
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