Magnetic field, semi-circle

  • Thread starter tarellan
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  • #1
tarellan
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Homework Statement



Part of a long wire is bent into a semicircle of radius a, as in the figure . A current I flows in the direction shown.
a.)Use the Biot-Savart law to find the magnitude of the magnetic field at the center of the semicircle (point P).

b.) Find the direction of the magnetic field at the center of the semicircle (point P).

The magnetic field is directed to the right.
The magnetic field is directed to the left.
The magnetic field is directed into the page.
The magnetic field is directed out of the page.

Homework Equations


RW-26-62.jpg



The Attempt at a Solution


I tried multiple attempts but im not sure what im doing wrong, can someone help??
 

Answers and Replies

  • #2
diazona
Homework Helper
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We can't tell you what you're doing wrong if you don't show us what you did...
 
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