The idea is for you to use Gauss's law to find the formula that you need. That's what @Chandra Prayaga indicated in post #2.elleo said:Is this formula:
E=((1)/(4(3.1416)(8.85X10^-12)) ((q)/(r)^2)
But what is the formula to calculate the q, the charge given the E (electric field) and r (distance)
The formula for calculating the charge in a sphere is Q = 4πϵ0r2Φ, where Q is the charge, π is a constant (3.14), ϵ0 is the permittivity of free space, r is the radius of the sphere, and Φ is the electric flux passing through the sphere.
The unit of measurement for charge in a sphere is Coulombs (C).
Yes, the formula can be used for any type of charged sphere, as long as the charge is evenly distributed throughout the surface of the sphere.
The permittivity of free space, ϵ0, is a constant that represents the ability of a vacuum to support an electric field. It is necessary in the formula to account for the effect of the medium surrounding the charged sphere.
Yes, this formula is commonly used in the field of electromagnetism to calculate the charge of objects such as conductors, insulators, and capacitors. It is also used in engineering and research for various applications involving charged spheres, such as electrostatic precipitators and particle accelerators.