Part A Find the direction of the magnetic field at point P due to the current in
ID: 1461730 • Letter: P
Question
Part A
Find the direction of the magnetic field at point P due to the current in the semicircular section of wire shown in the figure (Figure 1) .
The field is directed into the page.
Correct
Part B
Calculate the magnitude of the magnetic field in part (A).
Express your answer in terms of 0,I,R.
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Figure 1 of 1
Part A
Find the direction of the magnetic field at point P due to the current in the semicircular section of wire shown in the figure (Figure 1) .
The field is directed into the page.
Correct
Part B
Calculate the magnitude of the magnetic field in part (A).
Express your answer in terms of 0,I,R.
B =SubmitMy AnswersGive Up
Provide FeedbackContinue
Figure 1 of 1
Explanation / Answer
since the point P lies on the extension of the straight section,
the current in the straight line sections will not produce magnetic
field at that point. hence, the magnetic field due to semicircular section is,
B = 0 n i / 2R ( here, n= 1/2 turn)
= 0 I/ 4R