A High-Voltage Power Line 26

question 19

Multiple Choice

A high-voltage power line 26.9 m above the ground carries a current of 2722 A.What is the magnetic field due to the current directly underneath the power line? (µ₀ = 4π × 10−⁷ T⋅m/A)

• A) 20.2 µT
• B) 63.6 µT
• C) 64.4 mT
• D) 12.7 mT
• E) ​12.7 T

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