The diagram illustrates a potential divider circuit. The resistance of the variable resistor is made larger. Which row shows the effect on the reading on voltmeter P and on voltmeter Q?
- Areading on voltmeter P decreases; reading on voltmeter Q decreases
- Breading on voltmeter P decreases; reading on voltmeter Q increases
- Creading on voltmeter P increases; reading on voltmeter Q decreases
- Dreading on voltmeter P increases; reading on voltmeter Q increases