Hi all, need a little help on an electrostatic induction problem.
A positively charged metal rod is brought near to a neutral metal sphere. What is the charge of the metal sphere and the rod when the positively charged rod touches the neutral sphere.
The Attempt at a Solution
I know that when the positively charged rod is near the sphere, there will be electrostatic induction. There will be charge redistribution on the metal sphere, negative charges will be on the side of the sphere that is closer to the rod and the positive charges will be on the other side of the sphere that is further away from the rod.
I am not sure what will happen when the positively charged rod touches the metal sphere. My guess is the negative charges on the already polarized sphere will flow into the positively charged rod, neutralising the rod and leaving the sphere positively charged.
will appreciate if someone can enlighten me on this. Thanks!