Chapter 29, Problem MESSAGE MY INSTRUCTOR FULL SCREEN PRINTER VERSION BACK 012 t

Question

Chapter 29, Problem MESSAGE MY INSTRUCTOR FULL SCREEN PRINTER VERSION BACK 012 t Your answer is partially correct. Try again. In the figure, two long straight wires at separation d 15.0 cm carry currents of i 5.89 mA and i2 9.00 i1 out of the page. (a) At what coordinate on the centimeters is the net magnetic field due to the currents equal to zero? (b) If the two currents are doubled, is the zero-field shifted toward wire 1, shifted toward wire 2, or unchanged? (a) Number 0.0593 Units cm (b) unchanged the tolerance is +/-5%

Explanation / Answer

Bnet = B1-B2 = 0

B1 = B2

uoi1/2pi*r1 = uo*i2/2pi*r2

i1/r = 9i1/(15-r)

15 - r = 9r

15 = 10r

r = 15/10 = 1.5 cm

part b )

i2 = 9.00 i1

it remain unchanged

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