An Overhead Electric Power Line Carries a Maximum Current of 125

question 56

Multiple Choice

An overhead electric power line carries a maximum current of 125 A. What is the magnitude of the maximum magnetic field at a point 4.50 m directly below the power line?

• A)5.56 × 10^-6 T
• B)1.75 × 10^-5 T
• C)3.49 × 10^-5 T
• D)4.69 × 10^-4 T
• E)7.95 × 10^-3 T

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