What is the voltage across each resistor connected in parallel across a 12-volt battery?

What is the voltage across each resistor connected in parallel across a 12-volt battery?

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

Answer: (A)

When resistors are connected in parallel across a battery, all branches share the same two connection points, so the voltage across each branch is the same as the battery’s voltage. With a 12-volt battery, each resistor experiences 12 volts across it. The current through each branch can differ, as I = V/R for that branch, but the voltage remains the same for every parallel path. The other numbers would only occur in different wiring: 6 volts would require a divider or a series arrangement, 24 volts would need a higher or extra source, and 0 volts would mean no potential difference across the branch, which isn’t the case here.

When resistors are connected in parallel across a battery, all branches share the same two connection points, so the voltage across each branch is the same as the battery’s voltage. With a 12-volt battery, each resistor experiences 12 volts across it. The current through each branch can differ, as I = V/R for that branch, but the voltage remains the same for every parallel path.

The other numbers would only occur in different wiring: 6 volts would require a divider or a series arrangement, 24 volts would need a higher or extra source, and 0 volts would mean no potential difference across the branch, which isn’t the case here.