Sure, it's feasible as far as I can see but it is a HUGE waste of electricity to do that since the amount of current you'll get is tiny vs the amount you have to use to get it.abdo799 said:I know that van de graaff generator is a high voltage generator, i was wondering though if we can use it as a current source, if we get any resistor, connect the negative terminal to the generator "if the generator generates negative charge " then ground the positive terminal, then any charge that appears on the sphere will be immediately pulled to ground, creating a current, using simple formulae we can derive the current, is that feasible or not?
I don't get how you could do that.abdo799 said:Just wanted to know if it would work, going to use it to measure how much time does my generator need to reach maximum voltage
Assuming I=const the formula is simply t=Vmax⋅C/Iabdo799 said:My plan is by grounding the generator and measuring the current in the wires i can use it to know the time to reach the maximum voltage, can't write the formula now because i am using the mobile app
I still don't get it. If you ground the wires, or run the output of the generator through a resistor, you won't GET any voltage on the sphere. I think you must be talking about something that I'm not following.abdo799 said:My plan is by grounding the generator and measuring the current in the wires i can use it to know the time to reach the maximum voltage, can't write the formula now because i am using the mobile app
The Van de Graaff generator works by using a motor to continuously build up a high voltage charge on a hollow metal sphere. This charge is then transferred to a metal terminal, creating a strong electric field between the two. When a conductor is brought close to the terminal, electrons will flow from the terminal to the conductor, creating a current.
While a Van de Graaff generator can produce high voltage and high current, it is not considered a reliable current source. This is because the current it produces is highly variable and depends on factors such as the humidity and temperature of the environment, as well as the distance between the terminal and the conductor.
The amount of current produced by a Van de Graaff generator depends on the size and design of the generator, as well as the conditions in the environment. It can range from a few microamps to several milliamps. However, it is not typically used as a primary current source and is better suited for experiments and demonstrations.
It is generally safe to touch the metal terminal of a Van de Graaff generator while it is producing current. However, it is important to note that the high voltage charge can cause a shock, and the current can be strong enough to disrupt the normal functioning of the body. It is always recommended to use caution and follow proper safety protocols when working with high voltage equipment.
A Van de Graaff generator can be used in a variety of applications, including scientific research, education, and industry. It is commonly used to demonstrate the principles of electricity and to conduct experiments in electrostatics. It can also be used in particle accelerators and in the production of x-rays. However, due to its limitations as a current source, it is not typically used for practical or commercial purposes.