The answer to this question depends on the situation. First, 2.4 A is a measure of the flow of electrical energy in an electric circuit over one second. The amount of energy can be calculated by multiplying volts by amperes. One amp = 1A, also known as 1000 milliamperes. All else being equal, 2 amps will provide twice the current that 1 amp provides when both are supplying the same voltage.