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A High-Voltage Power Line 23

Question 29

Multiple Choice

A high-voltage power line 23.0 m above the ground carries a current of 2 200 A.What is the magnetic field due to the current directly underneath the power line? (µ0 = 4π × 10−7 T⋅m/A)


A) 19.1 µT
B) 60.1 µT
C) 60.9 mT
D) 12.0 mT
E) 12.0 T

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