Consider Two Current-Carrying Circular Loops $\vec { B }$ 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 $\vec { B }$ field at the center of the smaller loop is $\vec { B }$ ₁,what is the $\vec { B }$ 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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