Question

correct statements: Inside the house earth wire is connected to input terminal of kWh meter​

Answer 1

Answer:

In electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the earth.

Electrical circuits may be connected to ground for several reasons. Exposed conductive parts of electrical equipment are connected to ground, so that failures of internal insulation which create ground faults on the parts will trigger protective mechanisms in the circuit such as fuses or circuit breakers to clear the fault. In electric power distribution systems, a protective earth (PE) conductor is an essential part of the safety provided by the earthing system.