Which allows more power 18awg/2 or 20/16awg?

Power cord to hair dryer gets warm when using, thinking of replacing with a heavier cord.

Which allows more power 18awg/2 or 20/16awg?

the lower the number the thicker the wire gauge. Thicker wire can handle more electrical potential and flow. For example look at extension cords at the hardware store. Notice how the short cords are very small, but the longer the cord the thicker it has to be to account for voltage drop along the cord. The thicker cord handles the amperage draw better, and will actually read higher available voltage with a good multimeter. The sort answer is go thicker. However if the power cord is getting hot I suspect that the heater element is going bad in the hairdryer and causing excessive amperage draw, the cord should never be hot!

Which allows more power 18awg/2 or 20/16awg?

i think the 18.

Which allows more power 18awg/2 or 20/16awg?

the lower the number the heavier the wire. a hair dryer has a heating element, which draws the most current. The heavier the gauge, the better

Which allows more power 18awg/2 or 20/16awg?

The lower the number, the higher current it could handle. If your power cord is getting warm when you use it with the hair dryer (which could be 1000 watts =%26gt; drawing about 10 amps in North American standard voltage of 100), use a heavier duty extension cord... perhaps of gauge #14 copper extension cord, which is normally used in circuits up to 15 amps.