99.29: Two light wires are hung vertically. With efg (3l5op z nd ej(xzi.o3tny(ej:4udri7m -6lectrical current in both wires(trnd fo - jumi dlp :gjz4e63.753ey((x zino directed upwards

  94.29: Four infinitely long wires ayb lb8ft4r2h m/ v5*f5f)hvpjre arranged as shown in 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 thh/45yvb2pfrmb5 jhfl f) 8*tve 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 sao k*ozu 5*+k c-dxowk+me direction w cdu+xozok k-o*+k*5 as shown in the diagram. How 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-carrying wires shown (with convent.,53zhsy(7/0xprkh fik op+j 0kz ln iional 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 onz,3hk+ynk0h p(/z f70j.5poxr i iksl the wire labeled P from the other wires?

  05.22: The diagram below shows a straight wire carrying current i in a nq95qo c86iua 3 q djlh+-ts 4if:4jdouniform magnetic 6t9-iqo+jq4n 35 dh4 jdqcif:8a u solfield. An arrow indicates the magnetic force F on the wire. Of the following possibilities, the direction of the magnetic field must be