99.29: Two light wires are hung 2ur k-t 6spf6(2hx zq/wm*gyg vertically. With electrical current in both wires directed upwardsp-r6 u6zsf/ygt(m2* g wh q2kx

  94.29: Four infinitely long wires are arranged as shown in the accompanying figu 3rlh:e0q46poz b osp(re’s end-on view. All four wires are perpendicular 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 core3bh ( pq6o :0srzpol4ner 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 electric currents in the samaesuo7xc*j:a)r3q4 efs z:c 0e direction as shown in the diagram. How does the magnitude of the force on A from B comparec7z e s :aoqeux03 scj:)rf4*a to the force on B from A?

  06.37: For the four identical curre, wnb9hm .*uzynt-carrying wires shown (with conventional current coming out of the plane of the page), the wire on the right is labeled P. Wham9hz.y,wu bn* t is the direction of the magnetic force on the wire labeled P from the other wires?

  05.22: The diagram below showxr3b4be,9e qls a straight wire carrying current i in a uniform magnetic field. An arrow indicateqx94eel3,brb s the magnetic force F on the wire. Of the following possibilities, the direction of the magnetic field must be