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Powering Earth

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Question 6

Which row describes the potential difference for a mains-powered electric kettle and for a battery-operated portable radio?

Electric kettlePortable radioA9 V a.c.9 V a.c.B9 V d.c.230 V d.c.C230 V a.c.230 V d.c.D230 V a.c.9 V d.c. \begin{array}{|c|c|c|} \hline & \textbf{Electric kettle} & \textbf{Portable radio} \\ \hline \textbf{A} & 9\text{ V a.c.} & 9\text{ V a.c.} \\ \hline \textbf{B} & 9\text{ V d.c.} & 230\text{ V d.c.} \\ \hline \textbf{C} & 230\text{ V a.c.} & 230\text{ V d.c.} \\ \hline \textbf{D} & 230\text{ V a.c.} & 9\text{ V d.c.} \\ \hline \end{array} ABCD​Electric kettle9 V a.c.9 V d.c.230 V a.c.230 V a.c.​Portable radio9 V a.c.230 V d.c.230 V d.c.9 V d.c.​​
A

Electric kettle: 9 V a.c.9\text{ V a.c.}9 V a.c.; portable radio: 9 V a.c.9\text{ V a.c.}9 V a.c.

B

Electric kettle: 9 V d.c.9\text{ V d.c.}9 V d.c.; portable radio: 230 V d.c.230\text{ V d.c.}230 V d.c.

C

Electric kettle: 230 V a.c.230\text{ V a.c.}230 V a.c.; portable radio: 230 V d.c.230\text{ V d.c.}230 V d.c.

D

Electric kettle: 230 V a.c.230\text{ V a.c.}230 V a.c.; portable radio: 9 V d.c.9\text{ V d.c.}9 V d.c.

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Powering Earth Questions

  1. GCSE
  2. /Physics
  3. /Powering Earth

39 exam-style questions on OCR GCSE Physics Powering Earth. Each one has a worked solution and a mark scheme showing where the marks go.

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