Electric force of Van de Graaff generator problem.

In summary, a Van de Graaff generator is a machine that uses a motor and a belt made of insulating material to create static electricity on a metal sphere. It is commonly used for educational demonstrations and experiments, as well as in industrial applications. The electric force of a Van de Graaff generator can be calculated using a specific formula, and it is important to follow safety precautions when using one due to the potential for high voltage and electric shocks.
  • #1
geonerd
1
0
A Van de Graaff generator is charged so that a proton at its surface accelerates radially outward at 1.45 10^12 m/s2.

Find the following.
(a) the magnitude of the electric force on the proton at that instant magnitude

(b) the magnitude and direction of the electric field at the surface of the generator


I am major stumped... Thanks for helping!
 
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  • #2
I'm not too sure about Van de Graaff generators but isn't this a simple F=ma=qE question?
 

1. What is a Van de Graaff generator?

A Van de Graaff generator is a machine used to generate static electricity. It consists of a metal sphere on top of a tall column, a belt made of insulating material, and a motor. The motor turns the belt, which rubs against the metal sphere and creates a static electric charge.

2. How does a Van de Graaff generator work?

A Van de Graaff generator works by using a motor to turn a belt made of insulating material. As the belt rubs against the metal sphere, it creates a static electric charge. This charge builds up on the metal sphere and can be transferred to objects placed near the sphere.

3. What is the purpose of a Van de Graaff generator?

A Van de Graaff generator is commonly used for educational demonstrations and experiments involving static electricity. It can also be used in industrial applications, such as particle accelerators and x-ray machines.

4. How can I calculate the electric force of a Van de Graaff generator?

The electric force of a Van de Graaff generator can be calculated using the formula F = k(q1q2)/r^2, where F is the force in Newtons, k is the Coulomb's constant (9 x 10^9), q1 and q2 are the charges of the objects in Coulombs, and r is the distance between the objects in meters.

5. Are there any safety precautions to keep in mind when using a Van de Graaff generator?

Yes, it is important to follow proper safety precautions when using a Van de Graaff generator, as it can produce high voltage and potentially dangerous electric shocks. These precautions may include wearing protective gear, avoiding contact with the metal sphere, and ensuring proper grounding of the generator.

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