The two plates are a distance D apart. The surface area of the face of each plate is A, the total charge on each plate is +Q and ?Q, and the resulting uniform charge density is +?0 and ??0 respectively so that ?0=Q/A.
Use the principle of superposition to identify the correct statement(s) about the electric field at points 1,2,3, and 4.
The field at points 1 and 4 will be zero because the fields from positively and negatively plates will cancel each other
The charge on positively charged plate will not contribute to the field at point 1 because there's metal between them
The charge on negatively charged plate will not contribute to the field at point 4 because there's metal between them
The fields at points 1 and 4 will be the same magnitude as from a single plate but in opposite directions
The field at points 2 and 3 will be the same and the magnitude of the field is twice that of the field from a single plate
The field at points 2 and 3 will be zero because the fields from negatively and positively charged plates cancel each other
Calculate the electric field at points 1,2,3, and 4 in terms of electric charge density ?0 on each plate and ?0. Assume the positive direction if from right to left.
What is the potential difference, V0, between the plates
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