You could use an ohmmeter to measure it's resistance, or if they are the mini-lights, you may be able to use a AA battery to test the bulb. There is also the Light Keeper Pro that will test and fix the most Christmas light strings problems. List $25, most stores $20, Menard's Hardware store $17. http://www.lightkeeperpro.com/
NO
without the suns light then no without electricity light then yes
Yes they can produce electricity when two different metals are used as electrodes. Though it can take quite a few to light an LED light bulb. But with a Christmas light no for some reason it does not work.
Instead of using light bulbs, they used candles.
light , gas , electricity
This was the light. Without electricity back then, the only means for a visible light was to light a torch.
A taller pole and lots of lightning.
lit candles on the tree on little holders, yes very very dangerous
No power is used. The lamp in the light fixture is the load of the circuit. The load resistance is what makes the current flow. When the current flows through the filament's resistance, heat and light are generated. With no lamp in the fixture, the circuit's voltage potential is still at the socket contact points and if touched could cause you a shock. This is a good reason to shut the fixture off at the switch when removing the burnt out bulb and replacing it with a new one.
there would be no electricity no lightning and such.....
This question is incomprehensible. Please reword.
electricity because a light bulb needs electricity