On A Power Cord Which Side Is Positive
A 220 volt power cord has 2 positive terminals.
On a power cord which side is positive. If you want to identify positive and negative wires keep in mind that appliance plugs have hot wires and neutral sites rather than positive and negative sides. The green wire is always in the middle of the hot and neutral wires however it can t be seen when there are plugs on the cord. Connect the leads to meter input jacks. The hot wire is both positive and negative alternating with each line cycle.
Insert the known battery to the meter leads momentarily. You may mean which is the hot or live wire. The meter should be set to dc volts or be designed to measure direct current dc power. Only direct currents like those in cars have.
It uses alternating current so there s a live wire and a ground. An extension cord that you plug into your house is neither positive or negative. And also a green wire which is the ground. The use of alternating current means that power cords have hot and neutral wires rather than positive and negative if you have a polarized appliance cord the neutral wire is identified by a white stripe ribbing or white insulation.
Flat cords that have three wires will have the ribbed or neutral. However if you re using an extension cord the positive wire will be the smooth one while the negative wire will have a ribbed or grooved texture. One of the two or three. The hot wire has no ribbing or stripe or it may be coated with black or red insulation.
Set the volt meter on the 15 volt range as shown in the pictorial. The smooth or hot. The one that is different will be the ground. On my power cord which side is the positive and which is ground on the back of a vizio model e650i a2 one side is answered by a verified tv technician.
Which side of an extension cord is positive. Most all extension cords are for ac use.