What is a Meter-Ampere (mA)? Definition and Examples
A meter-ampere (mA) is a unit of electrical current. It is defined as one milliampere (mA) per meter, and it is commonly used to measure the current flowing through a circuit or device.
In practical terms, a meter-ampere is a measure of how much electricity is flowing through a given point in a circuit. For example, if a circuit is rated for 500 mA, that means that up to 500 milliamps of electricity can flow through the circuit at any given time.
To put this into perspective, a typical smartphone might draw around 1-2 amps of current when it is being used, so a circuit rated for 500 mA could easily power several smartphones at once.
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