If multiple identical loads are connected in parallel to the same voltage, the total power is the sum of the individual powers.

Prepare for the PMMI Industrial Electricity Test with quizzes featuring flashcards and multiple-choice questions. Each answer is explained with hints to ensure a thorough understanding. Gear up to excel in your exam!

Multiple Choice

If multiple identical loads are connected in parallel to the same voltage, the total power is the sum of the individual powers.

Explanation:
In a parallel circuit, all branches experience the same voltage. For an identical load with resistance R, the power in one branch is P = V^2 / R. If there are n such branches, the total power drawn from the source is P_total = n * (V^2 / R), which is exactly the sum of the powers in each branch. Therefore, the total power equals the sum of the individual powers. This holds even if the currents or resistances in branches vary in general; with identical loads the branch powers are equal, making the total simply a multiple of that common value.

In a parallel circuit, all branches experience the same voltage. For an identical load with resistance R, the power in one branch is P = V^2 / R. If there are n such branches, the total power drawn from the source is P_total = n * (V^2 / R), which is exactly the sum of the powers in each branch. Therefore, the total power equals the sum of the individual powers. This holds even if the currents or resistances in branches vary in general; with identical loads the branch powers are equal, making the total simply a multiple of that common value.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy