choke coil: meaning, definition, pronunciation and examples
Rare/Very LowTechnical/Engineering
Quick answer
What does “choke coil” mean?
An inductor designed specifically to block high-frequency alternating current while allowing low-frequency direct current to pass.
Audio
Pronunciation
Definition
Meaning and Definition
An inductor designed specifically to block high-frequency alternating current while allowing low-frequency direct current to pass; a type of coil used to filter or suppress unwanted signals.
In electrical and electronic engineering, a passive component (inductor) that 'chokes' or impedes high-frequency AC by offering high reactance, typically used in power supplies to smooth DC output by filtering out ripple.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Both dialects use the term identically in technical contexts.
Connotations
Purely technical, no regional connotations.
Frequency
Equally rare in general language but standard in engineering fields in both regions.
Grammar
How to Use “choke coil” in a Sentence
The [Device] contains/uses/requires a choke coil.A choke coil is installed/connected/placed in [the Circuit].The choke coil [Verb: filters/suppresses/blocks] [the Interference].Vocabulary
Collocations
Examples
Examples of “choke coil” in a Sentence
verb
British English
- The circuit was designed to choke the high-frequency noise.
- This component chokes the unwanted signal effectively.
American English
- We need to choke the EMI from the motor.
- The filter chokes any ripple above 10 kHz.
adverb
British English
- Not applicable for this noun-based technical term.
American English
- Not applicable for this noun-based technical term.
adjective
British English
- The choke-coil assembly is mounted on the board.
- We measured the choke-coil inductance.
American English
- The choke coil value is 100 µH.
- Check the choke coil terminals for continuity.
Usage
Meaning in Context
Business
Used only in technical procurement, manufacturing, or sales specifications for electronic components.
Academic
Used in electrical engineering textbooks, papers, and lectures on circuit design, power electronics, or electromagnetic compatibility.
Everyday
Virtually never used in everyday conversation outside of electronics hobbyists or repair contexts.
Technical
The primary context. Used in circuit diagrams, component datasheets, and technical discussions about filtering, power supplies, or RF interference suppression.
Vocabulary
Antonyms of “choke coil”
Watch out
Common Mistakes When Using “choke coil”
- Pronouncing 'choke' as /tʃɒk/ instead of /tʃəʊk//tʃoʊk/.
- Using 'choke coil' to refer to any inductor, rather than specifically one used for filtering/suppression.
- Omitting 'coil' when necessary for clarity to non-specialists, leading to confusion with the verb 'to choke'.
FAQ
Frequently Asked Questions
No. While both use coils of wire, a transformer transfers energy between circuits via electromagnetic induction, whereas a choke coil is primarily used to impede (choke) alternating current in a single circuit.
Inside almost every electronic device with a power supply, such as computers, televisions, and phone chargers, where it helps filter out electrical noise.
Yes, in technical jargon among engineers and technicians, 'choke' is a common shorthand for 'choke coil' or 'filter choke'.
It can cause the device to malfunction, often resulting in increased electrical noise (hum or buzz in audio equipment), unstable voltage, or complete failure of the power supply circuit.
An inductor designed specifically to block high-frequency alternating current while allowing low-frequency direct current to pass.
Choke coil is usually technical/engineering in register.
Choke coil: in British English it is pronounced /tʃəʊk kɔɪl/, and in American English it is pronounced /tʃoʊk kɔɪl/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None specific to this technical term.”
Learning
Memory Aids
Mnemonic
Think of a 'choke coil' as a traffic coil for electricity: it lets the steady flow of DC cars through but chokes (blocks) the fast, jittery AC motorcycles.
Conceptual Metaphor
ELECTRICAL FILTERING IS SIFTING/STRAINING; IMPEDANCE IS A BARRIER.
Practice
Quiz
What is the primary function of a choke coil?