Discover the Charge on Two Suspended Charged Balls with E and M Help!

  • Thread starter angiecakes
  • Start date
In summary, two charged balls with mass 30g are suspended on 10cm strings at an equilibrium angle of 60 degrees. Using trigonometry to determine the distance between the balls, the force equation F=c*q^2/r^2, and the forces of gravity and electrical attraction, the charge on each ball can be calculated as 1.33x10^-6. It would be helpful to see the steps taken to reach this answer for verification.
  • #1
angiecakes
1
0
E and M help!

I got 1.33x10^-6 for this question, can someone please verify/check it?

"two charged balls are suspended on light 10cm strings. Each has a mass of 30g. In equilibrium, the total angle between the strings is 60 degrees. Assuming the balls are equally charged, what is the charge on each ball?"

:(

Thanksss!
 
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  • #2
I'm assuming the balls would be right next to each other if hanging straight down?

Did you
A)Use trigonometry to figure out the distance between the balls at equilibrium?
B)Use F=c*q^2/r^2 to figure out the force on the balls in terms of q?
C)Use trig to figure out the force from gravity acting in the "swinging" direction on the balls?
D)Use trig to figure out the electrical force(in terms of q still)acting against the "swinging" direction?
E)Set those two equal and solve for q?

What you probably did wrong, if you did something wrong(I didn't check the math)is do F=c*q^2/r^2 just like that, which is the force going in a straight line between the two, and set that equal to the gravitational force that's NOT going in a straight line between the two, and it's not going to work
 
  • #3
I think it would help us if you posted exactly what you did to get the answer you've stated angiecakes.
 

What is the experiment "Discover the Charge on Two Suspended Charged Balls with E and M Help"?

The experiment involves using two suspended charged balls to demonstrate the principles of electrostatics and electromagnetism.

What materials are needed for this experiment?

The materials needed for this experiment include two small lightweight balls, a string or thread, a ruler, a power source, and a compass.

How does this experiment help us understand the concepts of charge, electric fields, and magnetic fields?

This experiment allows us to observe the behavior of charged particles in the presence of electric and magnetic fields, helping us understand how these fields interact and affect the motion of charged objects.

What are the steps involved in conducting this experiment?

The steps involved in conducting this experiment include suspending the two charged balls on a string, measuring the distance between them, applying an electric field using a power source, and observing the change in distance between the balls. This process is then repeated with a magnetic field using a compass to observe the deflection of the balls.

What are the potential applications of this experiment?

This experiment can be used to demonstrate and understand the principles of electrostatics and electromagnetism, which have numerous applications in technology and everyday life, such as in electric motors, generators, and electronic devices.

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