Answered: The magnitude of the magnetic field at…

Foundations of Astronomy (MindTap Course List)

14th Edition

ISBN:9781337399920

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter25: Astrobiology: Life On Other Worlds

Section: Chapter Questions

Problem 4RQ: How does the DNA molecule produce a copy of itself?

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The arrangement illustrated in the figure below is composed of six finite straight wires of length l. The electric current flowing in such an arrangement is i. Using the Biot-Savart law, calculate:

The magnitude of the magnetic field at point P due to the wire located along segment ab.
The answer is in the second image. I am trying to use the standard biot-savart, which is B = (μ0*I/4π) * ∫dl * sinθ / r^2, and it always gives me 16*pi*l at the denominator, instead of 8pi*l.

Solve it using B = (μ0*I/4π) * ∫dl * sinθ / r^2, and note that the image with the answer is correct.

e.
D
Ba-Borsin(
=Bcd
=
4πl
145
L.y
P
dB
B-Bot =
= cd
sin(45°) Bab
νομού
8πl

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