The neutral will have raised ribs or other markings down the length of the insulation. The hot wire is always smooth. Examine the screw terminals on the new lamp socket. When wiring a lamp socket, the ...

This is a common activity for all types of classes. Basically, you give students a battery, a bare copper wire and a small light bulb. The students are asked to find out different ways to make the ...

The numbers you see on the box don't always work out in real life. LED bulbs do last longer, but those claims about five to 10 years are estimates based on internal testing -- and companies are always ...

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