Physics – 4.2.2 Electric current | e-Consult
4.2.2 Electric current (1 questions)
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The question asks for the magnitude of the electric current, which is already given as 0.5 A. However, it also asks for the units used for electric current. The SI unit for electric current is the Ampere (A). The relationship between current (I), voltage (V), and resistance (R) is given by Ohm's Law: I = V/R. The question provides information about the wire's length, cross-sectional area, and current. While not directly needed to answer the first part, this information could be used to calculate the resistance of the wire if required. The current is measured in Amperes.