electric field
Medium (Specialised)Academic / Technical / Scientific
Definition
Meaning
A region around a charged particle or object within which a force would be exerted on other charged particles or objects.
The effect a charged object has on the space around it; more broadly, any condition of space in which electric charges experience a force, analogous to a magnetic or gravitational field.
Linguistics
Semantic Notes
A fundamental concept in electromagnetism. Often conceptualised as lines of force (electric field lines) radiating from positive charges and terminating at negative charges. Is a vector field (has magnitude and direction).
Dialectal Variation
British vs American Usage
Differences
Spelling of 'field' is consistent; no lexical differences. The term is identical in both varieties.
Connotations
Purely technical, neutral scientific connotations in both varieties.
Frequency
Equally used and understood in scientific contexts in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
The electric field [VERB: points/is/strengthens]...An electric field [VERB: exists/arises/is produced]...The electric field of/from [NOUN: a charge/the sun/an electron]...An electric field in/within/across [NOUN: the capacitor/the region/a vacuum]...To be in/under the influence of an electric fieldVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “To be a field day for physicists”
- “To generate a lot of static (informal metaphor)”
Usage
Context Usage
Business
Rarely used, except in specific industries like power generation or electrical engineering sales.
Academic
Core term in physics, electrical engineering, and materials science courses.
Everyday
Used only in basic explanations of static electricity (e.g., 'your hair stands up because of the electric field').
Technical
Fundamental concept in circuit theory, electromagnetism, antenna design, and semiconductor physics.
Examples
By Part of Speech
verb
British English
- The charged plates electric-field the space between them.
- The capacitor is electric-fielding the dielectric.
American English
- The capacitor electric-fields the dielectric material.
adverb
British English
- The particles moved electric-field-dependently.
- It was arranged electric-field-wise.
American English
- The charges separated electric-field-dependently.
adjective
British English
- The electric-field mapping revealed new patterns.
- He conducted an electric-field strength test.
American English
- We need an electric-field sensor.
- The electric-field intensity was low.
Examples
By CEFR Level
- A balloon can stick to a wall because it makes an electric field.
- The scientist drew lines for the electric field.
- An electric field exists around any charged object, like a battery terminal.
- The strength of the electric field decreases with distance.
- The electric field between two parallel plates is uniform if edge effects are ignored.
- They calculated the electric field generated by a point charge using Coulomb's law.
- Gauss's law provides a powerful method for calculating the electric field in symmetric charge distributions.
- The time-varying electric field induced a displacement current in the dielectric medium.
Learning
Memory Aids
Mnemonic
Think of a 'force field' around a superhero. An electric charge has an invisible 'force field' (electric field) around it that pushes or pulls other charges.
Conceptual Metaphor
AN ELECTRIC FIELD IS A REGION OF INFLUENCE. / AN ELECTRIC FIELD IS A FLUID FLOW (with field lines as streamlines).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Direct translation 'электрическое поле' is perfect and standard; no trap.
- Be careful with 'electromagnetic field' (электромагнитное поле), which is related but a broader concept.
Common Mistakes
- Confusing 'electric field' (E) with 'magnetic field' (B).
- Forgetting it's a vector (has direction).
- Saying 'electric field' when 'voltage' or 'potential difference' is meant.
- Incorrect plural: 'electric fields' is fine, not 'electrics field'.
Practice
Quiz
What is the primary defining characteristic of an electric field?
FAQ
Frequently Asked Questions
No, they are related but distinct. Voltage (electric potential difference) is the energy per charge needed to move between two points, while the electric field is the force per charge at a point. A strong electric field often implies a large voltage change over a short distance.
Yes. An electric field is a condition of space itself and does not require a material medium. It exists perfectly well in a vacuum, which is why light (electromagnetic waves) can travel through it.
The SI unit is newtons per coulomb (N/C) or, equivalently, volts per metre (V/m).
It is commonly visualised using electric field lines. The direction of the line shows the direction of force on a positive test charge, and the density of lines indicates the field's strength.