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 Form 4 physics cathode rays and cathode ray tube question and answers

Figure 22 shows an electric generator. The points P and Q are connected to a cathode ray oscilloscope (CRO).
figcathode4620201419.JPG
Sketch on the axis provided, the graph of the voltage output as seen on the CRO, given that when t=0, the coil is at the position shown in the figure.

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