40 watts. I did an experiment on this. Go do one and see for yourself. Sheesh. -_-
You need a Battery, Light Bulb, Ammeter, Switch.
If the current is stronger then the bulb will be brighter.The reading is much easier when you sit under the brighter bulb.
The light bulb. The light bulb. The light bulb.
The function of a light bulb in an electric circuit is that it turns electrical energy into light.
If one light bulb in a series circuit fails, all the other light bulbs will go out, until the failed bulb is replaced and the series circuit is completed again.If one light bulb in a parallel circuit fails, all the other light bulbs will still work.
40 watt light bulb. This is obvious. Go do an experiment. -_-
Yes, they can be used for reading.
The invention of the light bulb made it possible to work longer hours. It increased safety in the workplace. The light bulb replaced oil lamps in homes. The oil lamps were fire-hazards. People found that they could enjoy leisure activities such as reading at night time.
because it produce light in the night
A light bulb...LOL jk you cant afford a light bulb so nothing shines in your lamp.
who ever is reading this you are an idiot
Yes , it is safe to leave a night light on all night , however it depends on the size and the bulb.
Joseph Swan is not credited with inventing the first practical light bulb. That honor goes to Thomas Edison. The light bulb was invented to light the night.
any where you look you will se a light bulb. This made things able to be done at night for more squezeen of work hours. probably the light bulb invented the night shift also.
he invented it so people can see at night
Do you mean the dome light? If so just pop off the cover with a flat head screw driver and pull out the bulb
westinghouse has a bulb called the eye saver that was designed by nasa. it has a chrome film on the top of the bulb to reflect light downward. and the 125 watt rating was tested as the best wattage for reading.