Physics 9702 · AS & A Level · Potential dividers

Potential dividers — practice question

The diagram displays a battery, a fixed resistor, an ammeter and a variable resistor joined in series. A voltmeter is connected across the fixed resistor. The resistance of the variable resistor is decreased. Which row shows how the readings on the ammeter and the voltmeter change?

  • Aammeter: decrease; voltmeter: decrease
  • Bammeter: decrease; voltmeter: increase
  • Cammeter: increase; voltmeter: decrease
  • Dammeter: increase; voltmeter: increase

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