a potential difference

USAGE SUMMARY

"potential difference" is correct and usable in written English.
It is a scientific term used in physics and electrical engineering to describe the difference in potential energy between two points in an electric field. For example, "When a current is passed through a circuit, a potential difference is created between the two ends."

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

When a potential difference different from Vbi is applied, a current flows through the system.

Nanoscale Research Letters

The transport of oppositely charged ions with different mobilities develops a potential difference across the membrane.

Journal of Nanostructure in Chemistry

A potential difference in the parameters between three different assessment periods was analyzed by Friedman test.

Disease Markers

That could be a potential difference maker".

The New York Times

"There's a potential difference of opinion of how many will be needed".

The New York Times

A potential difference of 10 100 kilovolts is maintained between cathode (the negative electrode) and anode (the positive electrode).

Britannica

A potential difference always exists between the mouth area and inside crevice.

Journal of Loss Prevention in the Process Industries

(An electron volt is the amount of energy acquired by a single electron falling through a potential difference of one volt).

The New Yorker

A flow of one ampere is produced in a resistance of one ohm by a potential difference of one volt.

Encyclopedia Britannica

Shaft flux usually results in a localized current at each bearing rather than a potential difference between shaft ends.

Tribology and Interface Engineering Series

On specific environmental condition, a potential difference produces electron flow between dissimilar materials, corroding the less corrosion-resistant metal.

Engineering Failure Analysis

Expert writing Tips

Best practice

When writing about electrical circuits or physics, ensure you specify the points between which the "potential difference" is being measured or applied for clarity.

Common error

Avoid using "potential difference" when you actually mean potential energy. "Potential difference" refers specifically to the voltage between two points, while potential energy is the energy an object has due to its position or condition.

Linguistic Context

The phrase "a potential difference" functions as a noun phrase, typically serving as the subject or object of a sentence. It refers to the difference in electrical potential energy between two points in an electric field. As confirmed by Ludwig AI, it is correct and usable in English.

Expression frequency: Very common

Frequent in

Science

75%

Encyclopedias

10%

News & Media

5%

Less common in

Academia

5%

Wiki

3%

Formal & Business

2%

Ludwig's WRAP-UP

In summary, "a potential difference" is a grammatically correct and widely used term, particularly in scientific and technical fields, to describe the voltage between two points. Ludwig AI confirms its validity in written English. While often interchangeable with "voltage" in informal contexts, "a potential difference" is preferred in more formal and technical discussions for its precision. It's important to distinguish "potential difference" from potential energy to avoid errors. When using the phrase, ensure clarity by specifying the points between which the difference is being measured. The high frequency of occurrence in scientific sources underscores its importance in technical communication.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

electric potential difference

Emphasizes the 'electric' nature of the potential difference.

difference in electric potential

Explicitly states the difference concerning electric potential.

voltage differential

Uses the term 'differential' to highlight the difference in voltage.

voltage gap

Focuses on the 'voltage' aspect as the core difference, often used in electrical engineering.

voltage variation

Highlights that the voltage is not constant, but changes over time or space.

potential gradient

Focuses on the spatial rate of change of the potential, which is closely related to the electric field.

electromotive force

Refers to the force that causes electrons to flow, creating a potential difference.

tension

Tension, from the French term for voltage, focuses on a state of stress.

bias voltage

Indicates a specific voltage applied to a device or circuit to set a desired operating point.

possible disparity

Shifts the context to a general sense of inequality or difference, applicable outside of electrical contexts.

FAQs

How is "a potential difference" created in a circuit?

A "potential difference" is created when there is a separation of charge, typically by a voltage source like a battery or power supply. This charge separation establishes an electric field that drives current flow through the circuit.

What's the difference between "voltage" and "a potential difference"?

"Voltage" is essentially synonymous with "a potential difference". Voltage is the measure of the electrical potential energy difference between two points.

How does "a potential difference" relate to electric current?

A "potential difference" is the driving force behind electric current. According to Ohm's law, the current flowing through a conductor is directly proportional to the voltage (potential difference) across it.

In what contexts would I use the term "a potential difference"?

The term "a potential difference" is frequently used in technical and scientific writing, especially when discussing electrical circuits, electromagnetism, and electrochemistry. In more informal contexts, the term "voltage" might be preferred.