Positive or Negative wire on wall powered air purifier?

The 2 cord wire must have been chewed by your dog some were in the middle, Just unplug, join White to White Black to Black.

If you are keen on knowing which is Positive wire carefully plug it on and with a electric tested you will be sure on which wire the tester indicates positive.

The convention for light appliance cord is that the smooth or blank line is the hot and the one with writing or grooves is the neutral. With AC power, there's no positive or negative as such.

If the cord has two wires, the black is hot and white is neutral. I would replace the entire cord rather than splicing or taping it. Do it right.

A battery operated gadget has a direction to the present pass. Many factors can in simple terms be set as much as artwork in one direction of means pass; reversing that direction will lead them to no longer artwork. A battery is in fact the consequences of chemical reactions that flow in one direction, lots as water runs downhill. in case you opposite the direction, it incredibly is like putting the hose outlet to a bucket of water on the right as a replace of the backside of the bucket. The water won't pass uphill. electricity won't pass up an means hill to any extent further than water will pass up a gravity hill, and in case you opposite the battery, that's what you attempt to do. There are boundaries down pass (dams interior the electrical powered energy pass), gates that in simple terms permit pass pass one way and you are able to no longer rigidity the electrical powered energy "uphill" against those boundaries. in case you have an effortless flashlight, the place there is not any genuine barrier, the means ought to pass the two direction. (a twine and little easy bulb do no longer care which way the means is shifting to make easy). notwithstanding, the connections on the battery are actually not interior an identical place, so which you does no longer have a connection in case you set it in backwards. yet you're able to make the flashlight artwork via working wires from all of the battery connectors interior the battery case to the exterior, and connect it manually in the two orientation and the battery might artwork. So there are 2 motives that a battery must be located in its holder interior the right orientation: a million: the battery connections are designed to easily artwork in one way, and a pair of: there are digital factors in many stuff that in simple terms artwork in one way.

It wont matter if it is A/C ....alternating current ! Now if it is D/C Direct currant it would matter