I have three multiple choice questions on electromagnetism that i have been unable to get. The answers are there, i just can't get them. http://i2.photobucket.com/albums/y15/seiferseph/1.jpg i can't find any equation to use that doesn't have more than two unknowns. i've tried Fb = I*L*B*sinx but you don't have the force to solve. http://i2.photobucket.com/albums/y15/seiferseph/2.jpg i get the first part, but what does the resistor on the right have to do with it? how do you find anything for that? http://i2.photobucket.com/albums/y15/seiferseph/3.jpg i feel like i've tried every equation, if someone could just give me some hints as to how to use all the givens, like the turns, the 2 lengths, b field, etc. Thanks in advance!