Author Question: A wire in the plane of the paper carries a current clockwise through a loop. A magnetic field points ... (Read 79 times)

mmm · **on:** Jul 28, 2018

A wire in the plane of the paper carries a current clockwise through a loop. A magnetic field points out of the page. In what direction is a force being exerted by the magnetic field at the rightmost point on the loop?
1.leftward
2.into the page
3.toward the bottom of the page
4.out of the page

Question 2

Two parallel wires carry currents in the same direction and exert a force on each of magnitude F for each meter of length. One of the currents is now reversed in direction and doubled in magnitude. What are the resulting magnitude for the force per meter of length and its direction relative to the wires?
1.2F, attractive
2.2F, repulsive
3.4F, attractive
4.4F, repulsive