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nwellum.ecollege.com/course html'courseld-1493562180penVellunHMAC-bd98 124691 106754091aaca30398 10001 Course Home Cch.20 Problem 20.68 Part A A toroidal solenoid (see the figure (Figure 1) has inner radius 13.6 cm and outer radius 19 8 cn The has 270 turns and caries a current of 7 60 A What is the magnitude of the magnetic field at 10.7 eim from the center of the tons? Part B Seid at s63 cm from the center of the torus? Figure 1 of 1 Request Ans What is the magntude of the magnetic feid at 21 4 cm trom the center of the toua? Pqup Home 6 7 0

Explanation / Answer

Mean radius

Rm= (13.6+19.8)/2= 16.7 cm

a) at any outside point, B= 0

b) B= (uo) Ni/(2*3.14*r)= 4*3.14*10^-7* 270*7.6/(2*3.14* 0.167)

B= 2.45*10^-3 T

c) B= 0 (same as (a)

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