A Copper Plate Charged to -2.5 NC

How many electrons are uniformly distributed on the surface of an 18-cm diameter copper plate charged to -2.5 NC?

The 18-cm diameter copper plate charged to -2.5 NC has approximately 1.56 × 10^9 electrons uniformly distributed over its surface, according to the principles of Physics.

Understanding Charge Distribution

A thin, horizontal, 18-cm -diameter copper plate is charged to -2.5 nc. Assume that the electrons are uniformly distributed on the surface.

The subject of this question is a vertical copper plate which has been charged to a certain quantity and the distribution of the electrons is queried. The number of electrons ne is calculated by dividing the total charge by the charge per electron. In this case, the overall charge is -2.50 NC and the charge per electron is -1.60 × 10⁻¹⁹ C. From this, we know there are around 1.56 × 10^9 electrons. These would be distributed uniformly on the plate as in a region of zero electric field, all the conduction electrons would be distributed uniformly throughout the metal. This is a basic principle of Physics.

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