Current and potential difference/voltage are ______ related.

• A. Directly
• B. Open Circuit
• C. Incomplete circuit; there is a gap. Electricity cannot flow.
• D. Closed Circuit

Answer: (A)

Current is the flow of electric charges, and potential difference (voltage) provides the pushing force that drives that flow. In a circuit with a fixed resistance, Ohm’s law says I = V/R. When resistance stays the same, increasing voltage increases current proportionally, so the two quantities are directly related. This means if you double the voltage across a resistor, the current through it doubles. In an open circuit, where there isn’t a complete path for the charges to move, current doesn’t flow even if voltage is present, so the direct relationship doesn’t apply there. But in a closed circuit with a finite resistance, voltage and current rise together as the driving push increases.