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Vosh
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Couldn't I create a current in a circuit using a van de graff as the source of voltage? Many thanks.
Yes, but at very low current.Originally posted by Vosh
Couldn't I create a current in a circuit using a van de graff as the source of voltage? Many thanks.
Originally posted by russ_watters
Yes, but at very low current.
Originally posted by Vosh
Why is that? Isn't a wire a veritable sea of free electrons?
A Van de Graaff generator uses a motorized rubber belt to create static electricity. As the belt moves, it rubs against a metal comb, creating a build-up of positive charge on the belt. This charge is then transferred to a metal sphere or dome, creating a high voltage difference between the sphere and the ground. This voltage difference causes current to flow through any connected circuit.
The maximum current that can be generated by a Van de Graaff generator depends on several factors, including the size and design of the generator, as well as the distance between the generator and any connected circuit. In general, Van de Graaff generators can generate currents in the range of microamps to milliamps.
Van de Graaff generators have a wide range of practical applications, such as in particle accelerators, nuclear physics research, and high voltage testing. They are also commonly used in educational demonstrations to teach about electricity and static charge.
In most cases, it is safe to touch a Van de Graaff generator. However, it is important to always use caution and follow safety guidelines, as the high voltage produced by the generator can be dangerous. It is also important to note that certain conditions, such as wearing conductive clothing or being in a humid environment, can increase the risk of electric shock.
There are several ways to increase the current output of a Van de Graaff generator, such as increasing the size of the generator or adjusting the distance between the generator and the connected circuit. Additionally, using a larger metal sphere or dome can help to increase the voltage difference and therefore the current output. However, it is important to always follow safety precautions and not exceed the recommended voltage and current limits of the generator.