If voltage increases while resistance remains constant, what happens to current?

If voltage increases while resistance remains constant, what happens to current?

• A. Current decreases
• B. Current stays the same
• C. Current becomes zero
• D. Current increases

Answer: (D)

Current is how much charge flows, driven by voltage. When resistance stays constant, current changes in direct proportion to voltage, because I = V / R. So increasing voltage pushes more charges through the same amount of resistance, increasing the current. For example, with a 5-ohm resistor, raising voltage from 10 V to 20 V makes the current go from 2 A to 4 A. Therefore, the current increases.

Current is how much charge flows, driven by voltage. When resistance stays constant, current changes in direct proportion to voltage, because I = V / R. So increasing voltage pushes more charges through the same amount of resistance, increasing the current. For example, with a 5-ohm resistor, raising voltage from 10 V to 20 V makes the current go from 2 A to 4 A. Therefore, the current increases.