A square,clamping ammeter has four sides each with a length of 3.0 cm.The four sides of the ammeter are capable of measuring the magnetic field at the position of the sides.When the ammeter is clamped around a cylindrical wire carrying a DC current as shown in the figure,the average magnetic field measured in the sides of the clamp is 2.0
A)0.14 A
B)0.30 A
C)0.57 A
D)5.0 A
E)19 A

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The Answer of A square,clamping ammeter has four sides each with a length of 3.0 cm.The four sides of the ammeter are capable of measuring the magnetic field at the position of the sides.When the ammeter is clamped around a cylindrical wire carrying a DC current as shown in the figure,the average magnetic field measured in the sides of the clamp is 2.0
A)0.14 A
B)0.30 A
C)0.57 A
D)5.0 A
E)19 A

A Square,clamping Ammeter Has Four Sides Each with a Length