A-LevelPhysicsAlternating currentsOct/Nov 2009Paper 1 Q31 Mark
The diagram shows an oscilloscope screen displaying two signals. [Figure 3.1] Signal X has a frequency of 50 Hz and peak voltage of 12 V. What is the period and peak voltage of signal Y?
Aperiod/ms: 20, peak voltage/V: 4
Bperiod/ms: 20, peak voltage/V: 12
Cperiod/ms: 50, peak voltage/V: 4
Dperiod/ms: 50, peak voltage/V: 12
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The correct answer is A. This question tests the candidate's understanding of alternating currents within the Physicssyllabus. The examiner's mark scheme requires...
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