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10.1 Circuits, charge and current

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Question 8

During an investigation of a fixed resistor, a student uses a voltmeter to record the potential difference across it. In the first test, 640 J of energy is transferred in the resistor while 80 C of charge passes through it. The student then carries out a second test.

Which results from the second test would give a voltmeter reading 25% lower than in the first test?

[1]
A

420 J420\ \mathrm{J}420 J transferred while 70 C70\ \mathrm{C}70 C passes

B

600 J600\ \mathrm{J}600 J transferred while 60 C60\ \mathrm{C}60 C passes

C

480 J480\ \mathrm{J}480 J transferred while 60 C60\ \mathrm{C}60 C passes

D

420 J420\ \mathrm{J}420 J transferred while 60 C60\ \mathrm{C}60 C passes

Markscheme

10.1 Circuits, charge and current Questions

  1. GCSE
  2. /Physics
  3. /10.1 Circuits, charge and current

94 exam-style questions on Edexcel GCSE Physics 10.1 Circuits, charge and current, covering 10.1.1 Structure of the atom, 10.1.2 Circuit diagrams and symbols, 10.1.3 Series and parallel circuits, 10.1.4 Potential difference and voltmeters, 10.1.5 Energy transferred, charge and potential difference, and 10.1.6 Current, ammeters and charge flow. Each one has a worked solution and a mark scheme showing where the marks go.

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