99.29: Two light wires are he mas7jhadsuje2 )+ g3:t o7-hung vertically. With electrical current in both wires direcge +a7hdmo3t ujh-7)s e j2s:ated upwards

  94.29: Four infinitely long wir(mnbaz*vz /,v 5l,adyes are arranged as shown in the accompanying figure’s end-on view. All four wires are perpendicul n bmvy,(5a/zzv ,d*alar to the plane of the page and have the same magnitude of current I. The conventional current in the wire in the upper right-hand corner is directed into the plane of the page. The other conventional currents are out of the plane of the page. Point P is a distance a from all four wires. What is the total magnetic field at point P?

  03.30: Two parallel wires are carrying different electrichnh g akflkpd*v 7.f o )dfwi4u33q+ d+4gg9+a currents in the same direction as shown in the diagram. How doe.i9k + * g g)a34akf+wod4unq lp7v3fh+dhgd fs the magnitude of the force on A from B compare to the force on B from A?

  06.37: For the four identical current-carrying wirey)1iii o.5a iqs shown (with conventional curre ii1ii5oyq.) ant coming out of the plane of the page), the wire on the right is labeled P. What is the direction of the magnetic force on the wire labeled P from the other wires?

  05.22: The diagram below shows a stra2m s-j/f dywk lumj0/6ight wire carrying current i in a uniform magnetic field. An arrow indicates the ma6fwj/l/u ymj dkm 02s-gnetic force F on the wire. Of the following possibilities, the direction of the magnetic field must be