1. The problem statement, all variables and given/known data A straight wire (length Lcm, mass mg) lies horizontally on top of a sensitive scale. The wire is oriented so it runs north-south, and it is part of an electric circuit that includes a battery and an open switch. There is a uniform magnetic field everywhere, magnitude bT and running east to west. Suddenly the switch is closed, and current IA runs through the wire from north to south. Find N, the reading of the scale, in Newtons, after the switch is thrown. As usual, use: g = 9.803 m/s^2. 2. Relevant equations F=mg dF=BIdL 3. The attempt at a solution I feel a little confused about the question where it stated "magnitude b T and running east to west" this is the direction of B? So according to right-hand rule, since I is from North to South, the direction of Force due to magnetic field will go outward? So does it will affect the reading of the scale? I only need to consider gravity ? thank you for the help.