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Optional Practical: Uniform electric field

In this practical the the electric field between two parallel plates will be investigated using conducting paper. Set up the electrodes as in the photo below.It is best to use the side of paper without the grid lines as it seems to give more consistent results. Make sure the electrodes are pressed firmly into the paper by the drawing pins (thumb tacks). A 9V battery is connected from one strip to the other using ring...

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