The total current in a parallel circuit supplied from a 2-pole breaker is calculated to be what value, given a resistance of 25 ohms and reactance components?

Study for the Independent Electrical Contractors (IEC) Year 2 Part 3 Test. Use flashcards and multiple choice questions with hints and explanations to prepare confidently. Get exam-ready now!

To find the total current in a parallel circuit, you need to consider both the resistance and the reactance components, as these contribute to the overall impedance of the circuit. The total current can be calculated using Ohm's Law, I = V/Z, where V is the voltage across the circuit and Z is the total impedance, which takes into account the resistance (R) and the reactance (X).

First, calculate the impedance (Z) using the formula:

Z = √(R^2 + X^2)

If we assume that reactance contributes to the total impedance in this scenario, you will have to know the value of the reactance to compute Z accurately. Without specific values for the voltage supply or the reactance, we can't achieve numerical accuracy. However, the answer being 10.22 A suggests that after determining the impedance of the circuit and knowing the voltage supply, the resulting total current aligns with typical calculations for electrical circuits involving both resistive and reactive components.

In parallel circuits, the total current is also the sum of the currents through each path, which typically results in a higher total current compared to resistive-only scenarios. Given that the option of 10.22 A includes considerations of both resistance and reactance

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