M current

M Current, in electrical engineering, is a deprecated term sometimes used informally to refer to the instantaneous current flow in a circuit at a specific moment in time. It's more accurately described as simply "current," denoted by the variable i(t), where t represents time. The "M" presumably stood for "momentary" or "measured," but it lacks precision and is not used in formal technical documentation or instruction. The more accurate and widely accepted terminology is simply "current" to represent the flow of electrical charge. The term might be encountered in older texts or informal discussions, but its use should be avoided in favor of standardized electrical engineering vocabulary. Using "current" or "i(t)" is always preferable for clarity and accuracy.