Multiple Choice
A high power line carries a current of 1.0 kA.What is the strength of the magnetic field this line produces at the ground,10 m away? (μ0 = 4π × 10-7 T ∙ m/A)
A) 4.7 µT
B) 6.4 µT
C) 20 µT
D) 56 µT
Correct Answer:

Verified
Correct Answer:
Verified
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