CAPE Physics Unit 2 · 2007 · Paper 2 · Question 6(c)(iii)

A silicon diode with ideal forward-conducting threshold 0.7 V (Figure 7) is connected in series with a 1 kΩ resistor to an AC supply V_i = 1.5 sin(ωt) (Figure 6).

Sketch the waveforms for V_i, I, and V_R using the same time scale, with each full cycle spanning at least 8 cm on the time axis.

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