1. The problem statement, all variables and given/known data A point particle has a charge equal to –3.64 nC and a velocity equal to 2.75 10^3 m/s i. Find the force on the charge if the magnetic field is (d) 0.75 Ti + .75Tk The solution manual had a positive number. I thought it was a typo until I saw the next problem where they got the opposite sign of what I got again for j hat. F=qv x B, how is it possible that they got a + #?