What should the resistance read from a neutral connection to a ground connection?

The resistance reading from a neutral connection to a ground connection should ideally be 0 ohms. This is because both the neutral and ground wires are intended to serve distinct but complementary roles in an electrical system. The ground wire acts as a safety mechanism, providing a path for fault current to return safely to the ground, while the neutral wire serves as the return path for the current in the circuit.

In a properly wired electrical system, the neutral and ground connections should be bonded together at the service panel, meaning that they should have the same electrical potential under normal operating conditions. A reading of 0 ohms indicates that there is a direct and unobstructed connection between the neutral and ground, which ensures that any fault conditions can be effectively mitigated.

Higher resistance values (such as 1 ohm, 10 ohms, or 100 ohms) would suggest a poor or broken connection, which can lead to hazardous conditions where fault currents do not have a safe path to ground, increasing the risk of shock or electrical fires. Thus, it is critical for safety that the resistance between these two points reads as close to 0 ohms as possible.