An alpha particle has 2 protons. What is the electric field created 55cm away from an alpha particle? How do you solve these problems D:

Question

An alpha particle has 2 protons.  What is the electric field created 55cm away from an alpha particle? How do you solve these problems D:

badhi · Answer

E. Field on r distance from a particle with q charge is,
$$E=\frac{1}{4\pi\epsilon_0}\frac{q}{r^2}$$

It is given that alpha particle has 2 protons, you know the charge of a proton from that you can find q - charge of the alpha particle. Since the distance is also given you can find the electric field created at the given distance

anonymous · Answer

Dont you mean 8.99 times 10 ^9 ?

badhi · Answer

What I get as the answer is 9.52x10^-9. I don't think an alpha particle can generate 10^9N of a force

masumanwar · Answer

use coulombs invers square law for electric field or gausses law