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3 million years
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∙ 12y ago
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What was Thomas Edison's most talked about inventions?
Edisons most important inventions are the bulb, the pornograph and the improvement to the photograph camera.
How do you build a conductivity tester?
Take two pieces of wire, one battery and one light bulb. Battery and light bulb should be the same voltage. Attach one end of one piece of wire to one pole of the battery (Soldering it would be best). Attach one end of the other piece of wire to the other pole of the battery and the other end of the wire to side conductor of the light bulb. You are done. To test the conductivity of something you simply touch the center conductor of the light bulb to one end of what you're testing and the other end of the first piece of wire to the other end of what you're testing. If what you're testing conducts electricity the current will run from the battery through what you're testing into the light bulb, out the other side of the light bulb and back to the battery and the light bulb will light up. If what you're testing doesn't conduct electricity, the electricity from the battery will not be able to pass through it to the light bulb and it won't light up. Good luck!
Who Developed electic light bulb?
Bob the builder!
What is the resistance of a lightbulb using Ohm's law?
By Ohm's law, resistance is voltage divided by current, so the resistance of a light bulb can be measured by observing the voltage across it simultaneously with observing the current through it. Interestingly, the hot resistance is significantly different that the cold resistance, so measuring resistance with an ohmmeter will not give a meaningful resistance. This is because the resistance of a light bulb has a positive temperature coefficient. Take a typical 60 W 120V light bulb, for instance... Its cold resistance is about 16 Ohms. Calculate current and power at 120 V and you get 7.5 A and 900 W. The truth is that at 60 W, the bulb pulls 0.5 A and has a resistance of 240 Ohms.
When was Thomas Edison's most important work take place?
the lil bulb
How long does it take to a light bulb to decompose?
3 million years
How long does it take light bulbs to decompose?
recycle them into p pipes
How long does synthetic fabric take to decompose in a landfill site?
how long does fabrics take to decompose how long does fabrics take to decompose
How long does it take a light bulb to light?
1 nano secint
How long does it take for a light bulb to turn on?
i millisecond
How long does it take to change a light bulb?
i think it takes about 10 seconds if you already have the light bulb in your hand.
How long did it take to make the light bulb?
3 weeks
How long does it take for a light bulb to burn out?
3 months
How long does Lego take to decompose in the stomach?
Does not decompose
How many bees does it take to change a light bulb?
Only two, as long as the light bulb has a hole, large enough for them to enter!
How long did it take Albert Einstein to make the light bulb?
Albert Einstein did not invent the light bulb. You are thinking of Thomas Edison.
How long did it take to build the first light bulb?
2 years
