This question concerns the potential difference (p.d.) across, and the current in, a variable resistor. The resistance of the variable resistor is increased. Which statement is correct?
- AThe current can remain constant if the p.d. is decreased.
- BThe current can remain constant if the p.d. is increased.
- CThe p.d. can remain constant if the current is kept constant.
- DThe p.d. can remain constant if the current is increased.