QUESTION5 1 points Save Answer For this problem, define up as positive. Enter a

Question

QUESTION5 1 points Save Answer For this problem, define up as positive. Enter a negative value if the magnetic field points downward. In the coaxial cable shown, the inner conductor carries a current 11-1 A toward you and the outer conductor carries a current of 12 3 A away from you. Let d-1 mm a. What is the magnetic field at point a? Enter your answer in uT. 20 QUESTION 6 1 points Save Answer b, using the same values as in part a, what is the magnetic field at point b? Again, enter your answer in

Explanation / Answer

a) at point a,

B = mue*I1/(2*pi*d)

= 4*pi*10^-7*1/(2*pi*1*10^-3)

= 2*10^-4 T

= 200 micro R

b) at point b,

B = mue*(I2-I1)/(2*pi*3*d)

= 4*pi*10^-7*(3-1)/(2*pi*3*1*10^-3)

= 1.33*10^-4 T

= 133 micro T

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