A fixed system of charges exerts a force of magnitude 21 N on a 6 C charge. The 6 C charge is replaced with a 8 C charge. What is the exact magnitude of the force (in N) exerted by the system of charges on the 8 C charge?

Question

anonymous · Answer

What equations are you working with? I am having trouble thinking of one that effects charge and force with only one charge.

anonymous · Answer

well.. have you heard of the concept of electric field?!.. if yes. then do you know how u can calculate electric field?? and if no.. learn about electric fields first :P

anonymous · Answer

Ok found one online that fits the bill,

$$E=\frac{Force}{Charge}$$

anonymous · Answer

Force is newtons and Charge is in Columbs