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Physics 7 Online
OpenStudy (anonymous):

two large horizontal metal plates are separated by 4mm. the lower plate is at a potential of -6V. what potential should be applied to the upper plate to create electric field strength of 4000V/m upwards between the plate

OpenStudy (fifciol):

$$\Delta V=Ed$$

OpenStudy (anonymous):

Remember to use metric SI so that d = 0.004m.

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