99.29: Two light wires are8lzzxto 6b8mdc7xs*5 f7:g xj hung vertically. With electrical current in both wires dl 85:7sj z8 *gbmztfdxox6cx7irected upwards

  94.29: Four infinitely long wires are arranged as shown in b; o 6lbzf wkkst 1y(qt)b3g);the accompanying figure’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 conventional currents are out of the plane of the page. Point P is a distance a from all four wires. What is theylkz;otgt )3;kb61bw) sqf(b total magnetic field at point P?

  03.30: Two parallel wires anjm5z- uion3 .bxsi))sx57vwca*) o l re carrying different electric currents in the same direction as shown in the diagram. How does the magnitu5ax3 siwnszj)bm5o .-c7*) )xl noiuvde of the force on A from B compare to the force on B from A?

  06.37: For the four identical current-carrying wires shown (with conventionalzxsq+)c xi67u3w tfw53w ukv5 current 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 owq)v55f+swcwut367 xu xk zi3 ther wires?

  05.22: The diagram below shows a str14td h/ib1p qkaight wire carrying current i in a uniform ma 4it11 /dphqbkgnetic field. An arrow indicates the magnetic force F on the wire. Of the following possibilities, the direction of the magnetic field must be