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?

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Enhance your understanding of the fundamentals of electricity with the AMT General Exam. Study with multiple-choice questions crafted to improve your knowledge and confidence. Prepare effectively for your success!

Multiple Choice

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?

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.

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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