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2 marksAlternating Currents

CAPE Physics Unit 2 · 2016 · Paper 2 · Question 5(b)(iii)

The public electricity supply voltage is described by V = 156 \sin 314 t.

Determine the root mean square (rms) voltage.

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Other parts of this question

  1. 5(a)(i)With the aid of a diagram, explain the operation of a simple half-wave rectifier circuit which employs a junction diode. Indicate the polarity of the output…[6 marks]
  2. 5(a)(ii)Sketch the output voltage when the input is a sine wave.[1 mark]
  3. 5(b)(i)Determine the peak voltage.[1 mark]
  4. 5(b)(ii)Determine the frequency.[2 marks]
  5. 5(c)Draw a labelled sketch (do not plot) showing the correct values of amplitude and period for two cycles of the output voltage when this waveform is applied to a…[3 marks]

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