Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a voltage
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a voltage" is correct and usable in written English.
It can be used when referring to a specific measurement of electrical potential difference in a circuit or system. Example: "The circuit requires a voltage of 5 volts to operate efficiently."
✓ Grammatically correct
Science
News & Media
Tech
Alternative expressions(1)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
54 human-written examples
He has sent a voltage around a generation.
News & Media
When a voltage is applied to silicon, charges flow through the crystal.
News & Media
They rotate in response to a voltage to form an image.
News & Media
I got a voltage regulator from China for about £6 including delivery.
News & Media
Applying a voltage to the tubes creates an electric field that pushes them together.
News & Media
You can get a voltage converter for around $30 to $40.
News & Media
But when a voltage is applied to the suspension, the particles line up and let the light pass through.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
4 human-written examples
The MESFET thus can be considered a voltage-controlled resistor.
Encyclopedias
Expert view: "One of the most cost-effective things they could do is get a voltage-reduction device.
News & Media
A voltage-reduction device would make a big difference because Nathan uses so much electricity working from home.
News & Media
Molecular dynamics simulations show how a voltage-gated channel closes.
Science & Research
Expert writing Tips
Best practice
Use "a voltage" when referring to a single, specific measurement or instance of voltage. For general discussions about voltage as a concept, consider using "voltage" without the article.
Common error
Avoid using "a voltage" when you actually mean current. Voltage is the electrical potential difference, while current is the flow of electrical charge. Using the terms interchangeably can lead to misinterpretations.
Source & Trust
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a voltage" functions primarily as a noun phrase, typically acting as the subject or object of a sentence. It specifies a measurable electrical potential difference. As Ludwig AI explains, it is used when referencing a particular amount of electrical potential.
Frequent in
Science
40%
News & Media
35%
Tech
10%
Less common in
Wiki
8%
Encyclopedias
4%
Formal & Business
3%
Ludwig's WRAP-UP
In summary, "a voltage" functions as a noun phrase referring to a specific electrical potential difference, commonly used in scientific, technical, and news contexts. As Ludwig AI confirms, it's grammatically correct and widely employed. When using the phrase, be mindful of the units (volts) and avoid confusing it with current. Consider alternatives like "an electric potential" or "a potential difference" for nuanced communication. By paying attention to these details, you can ensure clear and accurate use of "a voltage" in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
an electric potential
Replaces the general term 'voltage' with a more specific term emphasizing the electric field aspect.
a potential difference
Focuses on the difference in electrical potential between two points, clarifying the concept.
a potential
Shortened version of 'electric potential', applicable in certain contexts.
an electromotive force
This phrase refers to the force that causes electrons to move in a circuit, it is a synonymous term for potential difference.
an electrical force
Highlights the force exerted by the electric field created by a voltage.
a tension
This term is used informally and figuratively in some contexts, implying a force or energy.
an energy level
Describes energy differences in a system, often related to voltage in electrical contexts.
an electrical charge
Focuses on the charge carriers influenced by the voltage.
a power supply
Refers to the source providing the voltage, not the voltage itself.
a current
Implies the flow of electrical charge, which is driven by voltage.
FAQs
How is "a voltage" typically used in a sentence?
What are some alternatives to saying "a voltage"?
Depending on the context, you can use phrases like "an electric potential", "a potential difference", or simply "the voltage" if you are referring to a specific voltage already mentioned.
What's the difference between "a voltage" and "the voltage"?
"A voltage" refers to a general instance or specification of voltage, while "the voltage" refers to a specific, previously mentioned, or understood voltage value. For example: "The circuit needs "a voltage" to operate. "The voltage" should not exceed 5V".
Is it correct to use "a voltage" in all contexts related to electricity?
While "a voltage" is grammatically correct, it's not always the most appropriate choice. Use it when you're referring to a specific measurement or instance. In general discussions about electrical principles, "voltage" without the article might be more suitable.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested