1. The problem statement, all variables and given/known dataA stationary particle of charge q = 3.0 10-8 C is placed in a laser beam whose intensity is 2.5 103 W/m2. (a) Determine the magnitude of the electric force exerted on the charge. (b) Determine the magnitude of the magnetic force exerted on the charge. 2. Relevant equations Force on a charge--> F=qE S = cu u = (1/2)εo*E^2 3. The attempt at a solution a.) i am given S and i know c so i can find u by S/c = u. now that i have u i can solve for E using u = (1/2)εo*E^2. I multiply E times q to get F. sounds easy enough and makes sense to me, however i am doing something wrong here huh? b.) i know that the magnitude will be zero since the charge is stationary.