99.29: Two light wires are hung vertically. kgv g yu.u4v8k-dmu/( With electrical current in both wires directed upwkg ( .4/-uguuy8vmv kdards

  94.29: Four infinitely long wires are arranged as shown in the accompanying fau f/)k(2,wtee pi- yvyg:glf73 :khuigure’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 corner is directed into the plane of the page. The other w- ie uvg2 pyhkyf,l3k/):u(ae :t 7gfconventional 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 carryin* g5du8z6p4zobbj e 5gt8-jsng different electric currents in the same direction as shown in the diagram. H jdzg-pjuz*6en s4b55 obt88 gow does the magnitude of the force on A from B compare to the force on B from A?

  06.37: For the four identical current-carryvw y r58jsj(9jing wires shown (with conventional current coming out of the plane of the page), the wire on the rj 8w9v(jrs 5jyight 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 straight wire carrying current i 2hx: l ylti5h;3aleyy+ipa5 )in a uniform magnetic field.+h xy;:ly 3i )al5yp 2ei5ahtl An arrow indicates the magnetic force F on the wire. Of the following possibilities, the direction of the magnetic field must be