Multiple Choice
Field of a long wire: The magnetic field at a distance of 2 cm from a current carrying wire is 4 μT. What is the magnetic field at a distance of 4 cm from the wire?
A) 1/2 µT
B) 1 µT
C) 2 µT
D) 4 µT
E) 8 µT
Correct Answer:
Verified
Correct Answer:
Verified
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