In a parallel circuit with four equal resistors across a 24-volt source, what is the voltage across resistor three (VR3)?

In a parallel circuit with four equal resistors across a 24-volt source, what is the voltage across resistor three (VR3)?

• A. 18 volts.
• B. 24 volts.
• C. 6 volts.
• D. 12 volts.

Answer: (B)

In a parallel circuit, each branch is connected directly across the same two points of the source, so every resistor experiences the full source voltage. The currents split among the branches, but the voltage across each branch remains the same as the supply. Since all four resistors are connected in parallel to a 24-volt source, the voltage across resistor three must be 24 volts. The number of parallel branches changes the total current and the combined (equivalent) resistance, not the voltage across any individual branch.

In a parallel circuit, each branch is connected directly across the same two points of the source, so every resistor experiences the full source voltage. The currents split among the branches, but the voltage across each branch remains the same as the supply.

Since all four resistors are connected in parallel to a 24-volt source, the voltage across resistor three must be 24 volts. The number of parallel branches changes the total current and the combined (equivalent) resistance, not the voltage across any individual branch.