A-LevelPhysicsElectric fieldsOct/Nov 2018Paper 4 Q69 Marks
Two parallel metal plates A and B are situated a distance 1.2 cm apart in a vacuum, as shown in [Figure 6.1]. Plate A is earthed and plate B is at a potential of –75 V. A helium nucleus is situated between the plates, a distance x from plate A. Initially, the helium nucleus is at rest on plate A where x = 0.
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