Two points A and B lie on the two sides of a long, straight wire carrying a current I in the direction indicated in figure below. 4 cm 2 cm A old (magnitude and direction) at point A

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Two points A and B lie on the two sides of a long, straight wire carrying a current I in the
direction indicated in figure below.
B
4 cm
2 cm
A
a. Calculate the magnetic field (magnitude and direction) at point A.
b. Calculate the magnetic field (magnitude and direction) at point B.
c. Find the change in magnetic field between points A and B.
Transcribed Image Text:Two points A and B lie on the two sides of a long, straight wire carrying a current I in the direction indicated in figure below. B 4 cm 2 cm A a. Calculate the magnetic field (magnitude and direction) at point A. b. Calculate the magnetic field (magnitude and direction) at point B. c. Find the change in magnetic field between points A and B.
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