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Question 18

Two branches are connected in parallel across an 18 V d.c. supply:

  • The left branch runs from the positive terminal through a 12 Ω resistor to point PPP, then through a 6 Ω resistor to the negative terminal.
  • The right branch runs from the positive terminal through a 3 Ω resistor to point QQQ, then through a 15 Ω resistor to the negative terminal.

What is the reading on an ideal voltmeter connected between points P P\,P and QQQ?

A

3 V3\text{ V}3 V

B

6 V6\text{ V}6 V

C

9 V9\text{ V}9 V

D

15 V15\text{ V}15 V

Markscheme

Current electricity Questions

  1. A Level
  2. /Physics
  3. /Current electricity

36 exam-style questions on AQA A Level Physics Current electricity, covering Basics of electricity, Current-voltage characteristics, Resistivity, Circuits, Potential divider, and Electromotive force and internal resistance. Each one has a worked solution and a mark scheme showing where the marks go.

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