MDCAT Physics MCQ #245

A 120 V AC source supplies power to a 6 Ω load. If the source has an internal impedance of 20 Ω, what is the maximum current drawn by the load?

MDCAT Physics MCQ #245

  1. Question 1

    Q1. A 120 V AC source supplies power to a 6 Ω load. If the source has an internal impedance of 20 Ω, what is the maximum current drawn by the load?

    • A) 2.5 A
    • B) 3 A
    • C) 3.2 A
    • D) 4 A

    Answer: 3.2 A

    Explanation: Using the maximum current formula, the maximum current is calculated from I_max = V_max / Z_total, giving 3.2 A