CAPE Physics Unit 2 · 2008 (T&T) · Paper 1 · Question Q17

Item 17 refers to the following diagram. The r.m.s value of a.c voltage is related to the peak to peak voltage by the equation

1. (A)V_{rms} = \frac{V_{pp}}{\sqrt{2}}
2. (B)V_{rms} = \frac{V_{pp}}{2\sqrt{2}}
3. (C)V_{rms} = \sqrt{2}\ V_{pp}
4. (D)V_{rms} = \frac{V_{pp}}{2}

This question uses a figure or table from the paper — you'll see it when you practise.