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AMT General – Fundamentals Of Electricity Practice Exam

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In a parallel circuit with four 6-ohm resistors across a 24-volt battery, what is the total voltage across resistor-three (VR3) in the circuit?
Correct Answer:
24 volts
Explanation:
In a parallel circuit, the voltage across every branch equals the source voltage. Since resistor three is directly across a 24-volt battery, the voltage across it must be 24 volts. The resistor values affect how much current each branch draws, not the voltage across the branches in parallel. For example, each 6-ohm resistor would carry I = 24/6 = 4 A, and the total current would be 16 A with a combined parallel resistance of 1.5 ohms, but those details don’t change the voltage across resistor three.

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