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If a paper and pencil lead is connected to a light bulb circuit which one will turn on the light bulb?
The paper will not conduct electricity, so it will not light up the bulb. The pencil lead, on the other hand, can conduct electricity and complete the circuit, causing the light bulb to turn on.
Can a pencil lead light up a bulb?
No, a pencil lead cannot light up a bulb on its own as it does not conduct electricity. However, if a pencil lead is used as a component in an electrical circuit connected to a power source, it may help light up a bulb.
Why can pencil lead can be used to make a light bulb?
A "pencil lead" is a mixture of the graphite allotrope of carbon mixed with clay and baked hard. While a pencil lead will conduct electricity, it can not be used to make a light bulb.
What effect would a pencil have on the brightness of a bulb?
A pencil has nothing to do with the brightness of a light bulb.
Why did the light bulb change brightness along the pencil?
because the pencil take the a litte enrgy.
Can you light a light bulb with pencil lead?
No, pencil lead (graphite) cannot conduct electricity like a metal wire can. In order to light a light bulb, a material that can conduct electricity, such as a metal wire, is needed to create a closed circuit.
What effect does the pencil lead have on the brightness of the bulb in a circuit?
The pencil lead does not have a significant effect on the brightness of the bulb in a circuit because it does not conduct electricity efficiently. In order for the bulb to light up brightly, the circuit needs an efficient conductor such as a metal wire to allow the current to flow easily and light up the bulb.
What type of energy transformation occurs when a light bulb is on?
Electrical energy is transferred into light energy, however if the light bulb is an older one, some energy will also be transferred into heat loss.
Give you an example of a non-living thing?
A chair, a pencil, a rock, a balloon, a light bulb, a book, a television. ANYTHING that is not alive
What is the wire inside an electric bulb known as?
This was called a filament and was found in older electric light bulbs.
Can energy saving light bulb charge a phone?
No. An energy saving light bulb is just a light bulb, and can't charge anything. The reason it's called an "energy saving" device is that it can give you the same amount of light while using less electrical energy than older bulbs used.
Can graphite let electricity turn on a light bulb?
No, graphite itself cannot conduct electricity in the same way as a metal wire. Graphite is a good conductor of electricity when in a specific form, such as in a pencil lead, but it is not typically used to power a light bulb without a complete circuit.
