Can anyone explain this question to me? Why it is B?
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edexcel unit 4， help needed Watch
- Thread Starter
- 19-06-2016 23:20
- 20-06-2016 10:00
e.m.f. is the rate of change of magnetic flux.
and the slope of the flux vs time graph gives you the RATE of change of magnetic flux.
The answer is B instead of A because the slope of the flux graph starts upwards immediately, so it has a slope of +2 or whatever it may be