A car starter consumes 120 kJ of energy in 20 seconds. What is the current flowing through

A car starter consumes 120 kJ of energy in 20 seconds. What is the current flowing through the starter motor while starting the engine if the voltage is at terminals 12?

To find out the current passing through the automobile starter under consideration, consider the formula: Q = U * Iх * t, from where we express: Iх = Q / (U * t).

Data: Q – energy consumed by the starter (Q = 120 kJ = 12 * 10 ^ 4 J); U is the voltage at the terminals (U = 12 V); t – the duration of the starter (t = 20 s).

Let’s perform the calculation: Iх = Q / (U * t) = 12 * 10 ^ 4 / (12 * 20) = 500 A.

Answer: The current passing through the car starter in question should be 500 A.