MDCAT Physics MCQ #247

A 3-phase AC transmission line has a voltage drop of 10 kV from the source to the load. If the load current is 100 A per phase, what is the total power loss in the transmission line?

MDCAT Physics MCQ #247

  1. Question 1

    Q1. A 3-phase AC transmission line has a voltage drop of 10 kV from the source to the load. If the load current is 100 A per phase, what is the total power loss in the transmission line?

    • A) 5 kW
    • B) 10 kW
    • C) 20 kW
    • D) 30 kW

    Answer: 10 kW

    Explanation: Using the power loss formula, the total power loss is calculated from P_loss = 3 * I^2 * R, giving 10 kW