In a parallel circuit with four 6-ohm resistors across a 24-volt battery, what is the voltage across resistor 3?

In a parallel circuit with four 6-ohm resistors across a 24-volt battery, what is the voltage across resistor 3?

• A. 12 volts
• B. 24 volts
• C. 6 volts
• D. 0 volts

Answer: (B)

In a parallel circuit, every component connected across the same two nodes experiences the same voltage as the source. Here, the four 6‑ohm resistors are all directly across a 24‑volt battery, so the voltage across each resistor, including resistor 3, is 24 volts. The current through each branch would be I = V/R = 24/6 = 4 A, and the total current drawn from the battery would be 16 A. The resistor values affect how much current each branch carries, not the voltage across them in parallel.

In a parallel circuit, every component connected across the same two nodes experiences the same voltage as the source. Here, the four 6‑ohm resistors are all directly across a 24‑volt battery, so the voltage across each resistor, including resistor 3, is 24 volts.

The current through each branch would be I = V/R = 24/6 = 4 A, and the total current drawn from the battery would be 16 A. The resistor values affect how much current each branch carries, not the voltage across them in parallel.