- #1
AdrianMachin
- 40
- 2
I've got confused over a topic in my physics textbook (Fundamentals of Physics).
The textbook says if a charged particle is enclosed by a shell of uniform charge, there is no electrostatic force on the particle from the shell. I don't firmly get this, as the book uses a confusing reasoning for this. At first, the textbook makes a Gaussian surface called S1 inside the shell and it assumes there's no charge enclosed by S1, so according to Gauss' Law; there in no electric field inside the shell and S1 which I agree. However, just after that, the textbook concludes that there would be the same results if a charged particle was inside the shell. I don't know how this conclusion work.
I think a charged particle inside a charged spherical shell would produce an electric field in its nearby environment thus it would exert electrostatic forces on the shell (If I'm wrong, please prove it) therefore by Newton's third law, there will be the same force in magnitude exerted on the charged particle...
The textbook says if a charged particle is enclosed by a shell of uniform charge, there is no electrostatic force on the particle from the shell. I don't firmly get this, as the book uses a confusing reasoning for this. At first, the textbook makes a Gaussian surface called S1 inside the shell and it assumes there's no charge enclosed by S1, so according to Gauss' Law; there in no electric field inside the shell and S1 which I agree. However, just after that, the textbook concludes that there would be the same results if a charged particle was inside the shell. I don't know how this conclusion work.
I think a charged particle inside a charged spherical shell would produce an electric field in its nearby environment thus it would exert electrostatic forces on the shell (If I'm wrong, please prove it) therefore by Newton's third law, there will be the same force in magnitude exerted on the charged particle...