Find the charge of the sphere (q2)

Thread starter NotInMrPutmansClass
Start date Nov 14, 2022
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Charge Sphere

In summary, to find the charge of a sphere, you can use the formula q = ke * (q1 / r^2), where q is the charge of the sphere, ke is the Coulomb's constant, q1 is the charge of the other object, and r is the distance between the two objects. The unit of measurement for charge is called the Coulomb (C), which is a derived unit in the International System of Units (SI). The charge of a sphere can be negative or positive, depending on the excess or lack of electrons in the sphere. The distance between two objects has an inverse relationship with the charge of a sphere, and other factors such as size, material, and external influences can also affect the charge

Nov 14, 2022

NotInMrPutmansClass

Homework Statement: Two small spheres (q1& q2) have different charges that add up to 5.0x10^-5 C. If they repel each other with a force of Fe = 1.0 N at a distance of 2.0 m apart, what is the charge on q2?

Relevant Equations: Electric force formula

Fe= (k*q1*q2)/r^2

Electric Field Formula

E=(k*q1)/r^2

where k is a constant 9x10^9 N*m^2/kg^2

I drew a diagram using all of the information

however, I am stuck and not to sure how to get one of the charges

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Nov 14, 2022

erobz

Homework Helper

Gold Member

Try writing out the equation that says the charges add up to…

See if that gives you enough info.

1. How do you find the charge of a sphere?

The charge of a sphere can be found by using the formula q = 4πεr²E, where q is the charge, ε is the permittivity of free space, r is the radius of the sphere, and E is the electric field strength at the surface of the sphere.

2. What is the unit of charge for a sphere?

The unit of charge for a sphere is Coulomb (C).

3. Can the charge of a sphere be negative?

Yes, the charge of a sphere can be negative. This indicates that the sphere has an excess of electrons, making it negatively charged.

4. How does the charge of a sphere affect its electric field?

The charge of a sphere directly affects the strength of its electric field. The larger the charge, the stronger the electric field will be at the surface of the sphere.

5. What is the significance of finding the charge of a sphere?

Finding the charge of a sphere is important in understanding the behavior of electric fields and the interactions between charged objects. It also allows for the calculation of other properties, such as the force between two charged spheres.