99.29: Two light wires are hung vertically. With electrical current in both 0be3kc pp) -m w6pd-yiwires directed upcd-bk py)pi-pwm0e36wards

  94.29: Four infinitely long wires are arranged as shown in the accob5v aco89 gf 4xf+we291ov y2.uw yptrmpanying figure’s end-on view. All four wires are perpendicular to thegw fw8v92pyxav.1eu yr2 5o + 4fo9btc 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 the total magnetic field at point P?

  03.30: Two parallel wires are carrying differkr8w h(../s 2ojjex wtent electric currents in the same direction as shown in the diagram. How does the magnitude of the fo(j8/wo jw. thx .ksr2erce on A from B compare to the force on B from A?

  06.37: For the four identical current-carrying wires shown (with conv*cx.rdz;/h5 (l 9*mfbwn*hpr cgsma4entional 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* /bwmxp f 9.hzcm5 (a4s g*rdlh;nr*c the other wires?

  05.22: The diagram below shows a straight brk)3cvuj 35srzvj2ua5 ) 9jlwire carrying current i in a uniform magnetic field. An arrow indicates the magnetic force F on the wire. Of the following possibilities, the direction ofrjk3 v uaz )ujs5rjv5b923)l c the magnetic field must be