1. The problem statement, all variables and given/known data The below region of space shown has uniform electric and/or magnetic fields, dependent on the conditions listed for cases A-G. Identical positively charged particles enters these regions with the same velocity. Rank the magnitude of the force on the particle just after it enters these regions for cases A-G from greatest to least. 2. Relevant equations F = qE + qv x B F = qE Fb = qvBsin(*) 3. The attempt at a solution A) Since the particle is positive(+) I said there would be a force F namely ( ---> ) on the particle. B) When only B is present there is no force on the particle, Fb = qvBsin(0) = 0. This is because both B and V are parallel. C) Same as A: ( ---> ) D) Same as A: ( ---> ) E) Here the direction of the force changes but its magnitude remains the same so: ( <--- ) F) There is an upwards force in this case. However, its magnitude is the same as was in A. G) I have this as being two forces on the particle so G is the largest. Overall I ranked them as follows: G>A=C=D=E=F>B Not sure if I did these correctly any help would be appreciated.