The electric field just above the face of a penny is 1.14×103 N/C. What is the surface charge density on the surface of that penny face?
Question
Solution 1
The surface charge density (σ) on a surface can be calculated using Gauss's law. According to Gauss's law, the electric field (E) near a charged surface is given by the equation:
E = σ / ε0
where ε0 is the permittivity of free space, which is a constant equal to 8.85 × 10^-12 C^2/N·m^2.
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