99.29: Two light wir5pqmxoi ay3; 0es are hung vertically. With electrical current in both wires direxoq30 pm;5 ayicted upwards

  94.29: Four infinitely long wires are arranged as shown in the accompanyin1zzh-csaaf2u9z/ ky4g 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 o ach-z21zu/ sa9kfy z4ut 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 1mj;5/dasm/x ui :i. qrvy l3ac g.9ngdifferent electric currents in the same direction as shown in the diagram. How does the magnitude of the force on A from i/a3 a .q d;5m :cnxvuigm/ sl.yg9jr1B compare to the force on B from A?

  06.37: For the four identical current-carx) bd3t:ag;df( gl sxgv8h3+ mgg)a-orying wires shown (with conventional current coming out of the plane of the page), the wft(ghbalsv); 3xg+):o d38m-xd ga ggire 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 be3cxj n tn-kr+m) ,xqfmye3, e8low shows a straight wire carrying current i in a uniform magnetic field. An arrow indicates the magnetic force F on the wire. Of the following pof8t je +xqym en, r3x-mk)3c,nssibilities, the direction of the magnetic field must be