The diagram illustrates a potential divider linked to two voltmeters P and Q. The resistance of the variable resistor is reduced. Which row shows what happens to the reading on each voltmeter?
- 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