Multiple Choice
The current in a long wire creates a magnetic field in the region around the wire.How is the strength of the field at distance r from the wire center related to the magnitude of the field?
A) field directly proportional to r
B) field inversely proportional to r
C) field directly proportional to r2
D) field inversely proportional to r2
Correct Answer:
Verified
Correct Answer:
Verified
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