Question

The electric potential of earth is taken to be zero because earth is a good (a) Insulator (b) conductor (c) semiconductor (d) dielectric

Answer 1

The electric potential of Earth is taken to be zero because Earth is a conductor.

• A conductor is a material that allows electric charges to flow through it with ease, and as a result, it has a low resistance to the flow of electric charges.
• The Earth is a good conductor because it contains a large amount of saltwater, which is an excellent conductor of electricity. By assuming that the electric potential of Earth is zero, scientists and engineers can simplify their calculations and avoid having to take into account the complex electrical properties of the Earth.
• Instead, they can focus on the electric potential differences between different points on the surface of the Earth or between the Earth and other objects in the electric field.

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