Applying Coulomb's Law: Changes in Charge and Distance

In summary, the conversation is about Coulomb's Law and its application to various scenarios. The first scenario is two charged spheres that are 10.0cm apart and attract each other with a force of magnitude 3.0 x 10^-6 N. The following changes are considered separately: (a) both charges are doubled while the distance remains the same, (b) an uncharged, identical sphere is touched to one of the spheres and then taken far away, and (c) the separation is increased to 30.0 cm. The person speaking asks the other to write the equation for Coulomb's Law and suggests that if they know it, all of the questions should be easy to answer by changing the variables in the
  • #1
webiret
1
0
1. 1. Two charged spheres,10.0cm apart,attract each other with a force of magnitude 3.0 x 10^-6 N. What force results from each of the following changes, con- sidered separately?
(a) Both charges are doubled, while the distance remains the same.
(b) An uncharged,identical sphere istouched to one of the spheres and is then taken far away.
(c) The separation is increased to 30.0 cm.
 
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  • #2
Hi webiret!
Welcome to PF.

The rule here at PF is, to get some help you must show attempt.

Can you write the equation for Coulumb's Law?
 
  • #3
If you know Coulomb's Law, then all of the questions should seem pretty straightforward. Simple change the variables in the equation for Coulomb's Law and you should get the answers. Try it out, and if you get stuck, post your attempts here.
 

Related to Applying Coulomb's Law: Changes in Charge and Distance

1. What is Coulomb's Law?

Coulomb's Law is a fundamental law in physics that describes the electrostatic force between two charged particles. It states that the force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

2. How is Coulomb's Law calculated?

Coulomb's Law can be calculated using the equation F = k(q1q2)/r2, where F is the electrostatic force, k is the proportionality constant (9 x 109 Nm2/C2), q1 and q2 are the charges of the two particles, and r is the distance between them.

3. What is the unit of measurement for Coulomb's Law?

The unit of measurement for Coulomb's Law is Newtons (N), which represents force. This is because Coulomb's Law describes the force between two charged particles.

4. What is the significance of Coulomb's Law?

Coulomb's Law is significant because it helps us understand the interactions between charged particles and how they affect the behavior of matter. It is also used in many practical applications, such as designing electronic devices, studying the behavior of atoms and molecules, and understanding the behavior of lightning.

5. How does Coulomb's Law relate to Newton's Law of Universal Gravitation?

Coulomb's Law and Newton's Law of Universal Gravitation are similar in that they both describe the force between two objects. However, Coulomb's Law describes the force between charged particles, while Newton's Law of Universal Gravitation describes the force between any two objects with mass. Additionally, the force described by Coulomb's Law is much stronger than the force described by Newton's Law of Universal Gravitation.

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