In a parallel circuit, adding a separate branch with a load affects total current by:

• A. Increase that resistor’s resistance
• B. Remove one branch
• C. Add a load/bulb on a separate branch
• D. Increase supply voltage

Answer: (C)

In a parallel circuit, the total current is the sum of the currents in every branch, and the voltage across each branch is the same as the source. When you add a new branch with a load, you create an additional path for current to flow. The current through that new branch is determined by the supply voltage divided by the load’s resistance (I = V/R), so the overall current from the source increases by that amount. The voltage across all branches remains the same (assuming an ideal source), so the change comes from adding another current path, not from changing any existing resistance or the supply voltage.

The other options don’t fit because they would involve altering existing elements or the power source rather than simply adding a new branch with a load.