In the 24 V parallel circuit with R3 = 4 Ω, what is the current through R3?

Get ready for the NCCER Introduction to Electrical Circuits exam. Study with multiple choice questions, each question comes with hints and explanations. Ace your exam with confidence!

Multiple Choice

In the 24 V parallel circuit with R3 = 4 Ω, what is the current through R3?

Explanation:
In a parallel circuit, the voltage across every branch is the same, and the current in a branch is found using I = V/R for that branch. With a 24 V source across a 4 Ω resistor in this parallel setup, the current through that resistor is 24 ÷ 4 = 6 A. So the current through R3 is 6 A. (The other numerical options would imply different voltages or resistances for that branch.)

In a parallel circuit, the voltage across every branch is the same, and the current in a branch is found using I = V/R for that branch. With a 24 V source across a 4 Ω resistor in this parallel setup, the current through that resistor is 24 ÷ 4 = 6 A. So the current through R3 is 6 A. (The other numerical options would imply different voltages or resistances for that branch.)

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