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Consider Two Current-Carrying Circular Loops B⃗\vec { B } Field at the Center of the Smaller Loop Is

Question 116

Multiple Choice

Consider two current-carrying circular loops.Both are made from one strand of wire and both carry the same current,but one has twice the radius of the other.If the B⃗\vec { B } field at the center of the smaller loop is B⃗\vec { B } 1,what is the B⃗\vec { B } field strength at the center of the larger loop?


A) 8B1
B) 4B1
C) 2B1
D) B1/2
E) B1/4

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