iPad 15% edugen wileyplus.com RCES Chapter 28, Problem 061 The coil in the figur

Question

iPad 15% edugen wileyplus.com RCES Chapter 28, Problem 061 The coil in the figure carries current i = 1.82 A in the direction indicated, is parallel to an xz plane, has 6 turns and an area of 4.01 x 10-3 m2, and lies in a uniform magnetic field Upper B Overscript right-arrow EndScripts = (2.33 , -2.13 j Overscript EndScripts - 4.5s K ) mT. (a) what is the magnetic potential energy of the coil-magnetic field system? (b) What is the magnetic torque (in unit-vector notation) on the coil? (a) Number Unit (b) Number i Overscript EndScripts+ j Overscript EndScripts + k Overscript EndScripts) Unit

Explanation / Answer

061)

a)magnetic energy = - U.B =-(NiA).B=-(6*1.82*4.01*10^-3) j .(2.33i-2.13j-4.55k)*10^-3=93.08 micro weber

b)torque= U * B =0.0437j *(2.33i-2.13j-4.55k)= -0.102 k - 0.198 i micro newton metre

048)x comp = 0,y comp=0,z comp=401.86 millinewton

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