milliampere

Thân thiện

A technician checks the milliampere reading on a multimeter.

Definition

Noun: - A unit of electric current equal to one thousandth of an ampere: A milliampere is a standard subunit for measuring the flow of electric charge, commonly used for smaller currents in electronics and electrical engineering.

Usage

The term "milliampere" is used in technical contexts to specify electric current. It is often abbreviated as "mA". It functions as a countable noun (e.g., "a few milliamperes").

Examples

• Noun:
  • The LED indicator requires only 20 milliamperes to operate.
  • The device's power supply can deliver up to 500 milliamperes.
  • Measure the current in milliamperes using the multimeter's appropriate setting.

Advanced Usage

• "Milliampere-hour (mAh)": A unit of electric charge, representing a current flow of one milliampere sustained for one hour. This is commonly used to rate the capacity of batteries.
  • The smartphone has a battery capacity of 3000 milliampere-hours.

Variants and Related Words

• Ampere (A) (noun): The base SI unit of electric current. One ampere equals one thousand milliamperes.
• Microampere (µA) (noun): A unit of electric current equal to one millionth of an ampere, or one thousandth of a milliampere.

Synonyms

• mA: The standard abbreviation and the most common synonym in written and spoken technical language.

Học thuật

Noun

1. one thousandth of an ampere

Từ đồng nghĩa

• ma