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How many milliamps make one Amp?

  1. 100

  2. 500

  3. 1000

  4. 2500

The correct answer is: 1000

One Ampere (Amp) is equal to 1000 milliamps (mA). This relationship is fundamental in electrical engineering and is based on the metric system, where the prefix "milli-" denotes a factor of one thousandth (1/1000). Therefore, when converting from Amperes to milliamps, you multiply by 1000, resulting in 1 Amp being equivalent to 1000 milliamps. This conversion is crucial for understanding electrical currents in various applications, especially in marine electrical systems, where precise measurements can be critical for safety and system performance.