Formula to calculate the charge in a sphere

[elleo]

1. The problem is: Which charge will a sphere have if it has a diameter of 0.26 meters and produces an electric field of 1030 N/C in the surface? 2. Gauss Law3. I need the charge of the sphere but i couldn´t find any formula to calculate the charge given the distance (r) and electric field (E)

 

[Chandra Prayaga]

You are supposed to use Gauss's law. So what does Gauss's law say?

 

[elleo]

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)

 

[kuruman]

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 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.

 

[Chandra Prayaga]

Really, you should start by stating Gauss's law