See Image Below CAPAM Homework Help Ask A Q Thr C fi ou.edu aw/dci5 May96.proble

Question

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CAPAM Homework Help Ask A Q Thr C fi ou.edu aw/dci5 May96.problem?symb uploaded%2fohiou%2fld348015cd5835236oucapa2%2fdefault 1388360754%2esequence 6 ohic Q Apps c Hw Help D wileyplus. ON-CAPA. D phyzics beck Blackboard Learn Email a Amazon Student A oucu CC payment G Glyde n5CHier Discover E ESPN Premier Fant, CUR a Dailybreak Student section: 101) Physics 2052/Spring 2014 New Messages Courses Help Logout Main Menu l Course Contents L Notes Bookmark Evaluate Communicate Print Info Course Contents Week 10 Magnetic Field at a Point Magnetic Field at a Point Due in 10 hours, 22 minutes Two long straight parallel wires, separated by 4.40 cm, are perpendicular to the plane of the page as shown in the figure. Wire "a" carries a current of 55.0 A into the page. What must be the current (magnitude and direction with respect to "a") in wire "b" for the resultant magnetic field at point P to be zero? Wire a, wire b and the point Pare on a straight line and wire b is 18.60 cm from P Magnitude: Direction: O Into the page O Out of the page Submit Answer Tries 0/10 Post Discussion Send Feedbac

Explanation / Answer

Net B= miuo*i1/2*pi*r1 +miuo*i2/2*pi*r2

0= miuo*i1/2*pi*r1 +miuo*i2/2*pi*r2

i1/r1=-i2/r2

55/(18.6+4.4)=-i2/18.6

i2=-44.48 A

- indicated that direction of current is opposite to that in a

Ans:

Magnitude:44.48 A

Direction:out of the page

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