Multiple Choice
A high-voltage power line 20 m above the ground carries a current of 5000 A.What is the magnetic field due to the current directly underneath the power line? (µ0 = 4π × 10−7 T⋅m/A)
A) 14 mT
B) 35 µT
C) 20 µT
D) 50 µT
Correct Answer:

Verified
Correct Answer:
Verified
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