What is 0.5 Amperes equivalent to in milliamps?

To convert amperes to milliamps, you multiply the number of amperes by 1000, since one ampere is equal to 1000 milliamperes.

In this case, 0.5 amperes can be converted as follows:

0.5 Amperes × 1000 = 500 milliamps.

Thus, 0.5 Amperes is equivalent to 500 milliamps, making this the correct answer. This conversion is crucial in various applications, particularly in electrical engineering, where understanding different units of current is fundamental for ensuring proper circuit functioning.