2. A wire radius a and b formed a closed circuit with radius a and radius bas shown in the figure. The circuit carries a current I. If the magnetic field is zero at the center point of P (or center of circular curves) then what is the ratio of a/b? (Attention monly the prect answor a) 4/3 b) 2/3 c) 3/2 d) 7/2 e) 9/2 To you a

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2. A wire radius a and b formed a closed circuit with radius a and radius bas
shown in the figure. The circuit carries a current I. If the magnetic field is
zero at the center point of P (or center of circular curves) then what is the
ratio of a/b? (Attention
monly the prect answor
a) 4/3
b) 2/3
c) 3/2
d) 7/2
e) 9/2
To you
a
Transcribed Image Text:2. A wire radius a and b formed a closed circuit with radius a and radius bas shown in the figure. The circuit carries a current I. If the magnetic field is zero at the center point of P (or center of circular curves) then what is the ratio of a/b? (Attention monly the prect answor a) 4/3 b) 2/3 c) 3/2 d) 7/2 e) 9/2 To you a
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