Oppositely charged parallel plates are separated by 5.33 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric fi eld between the plates? (b) What is the magnitude of the force on an electron between the plates? (c) How much work must be done on the electron to move it to the negative plate if it is initially positioned 2.90 mm from the positive plate?
PHY 184 Lecture Notes Week 1 8/31-9/2 Fundamental Forces There are four fundamental forces in Physics o Gravitational o Electromagnetic These forces operate at an infinite range o Weak Force o Strong Force These forces only operate within short distances All physical interactions are the cumulative result of the interactions of these forces o Most large scale interactions result from Gravity and Electromagnetism Relative strengths of the forces o If all of the forces are listed by relative strength they would look something like this Strong = 1 -2 Electromagnetism = 10 Weak = 10 -5
