# Which side of a lamp cord is positive and which is negative?

## Which side of a lamp cord is positive and which is negative?

As one person indicated, if using traditional lamp wire, one side is ribbed and the other is smooth. Ribbed is the neutral (negative) side and smooth is the line (positive).

## Which wire is the neutral on a lamp cord?

The wire with the ribbing or stripe is the neutral wire, and the other one is hot. If you don’t see any markings on the wires, and the plug has two prongs of equal size, the cord is not polarized.

## How do you tell which wire is hot on a lamp?

Look at the colors of the wires in your lamp. If there are three wires, the wire with black insulation is hot. If you have four, then the black and red wires are both hot.

## Which side of cord is hot?

The hot wire is always smooth on the outside of the cord, while the neutral wire is ribbed on the outside. For flat cords with polarized plugs on the end, the larger prong (or terminal) is the neutral wire.

## Is Hot wire white or black?

The black wire is the “hot” wire, it carries the electricity from the breaker panel into the switch or light source. The white wire is the “neutral” wire, it takes any unused electricity and current and sends it back to the breaker panel.

## Which is the hot wire white or black?

The black wire is the “hot” wire, it carries the electricity from the breaker panel into the switch or light source. The white wire is the “neutral” wire, it takes any unused electricity and current and sends it back to the breaker panel.

## What if both black wires are hot?

However, if both wires are hot, the reading will be zero. The United States has strict codes relating to home wiring, including clearly defined colors on the outer casing of the wires. Black means hot, white signifies neutral, and green indicates ground.

## What happens if you wire a lamp backwards?

Tip. The fixture still works if you reverse the wires, but the socket sleeve will be hot, and anyone who touches it while changing a bulb can get a shock. When wired correctly, the socket sleeve is neutral and only the small metal tab at the base of the socket is hot.