At double the distance from a long current carrying wire, the strength of the magnetic field...
At double the distance from a long current carrying wire, the strength of the magnetic field produced by the wire decreases to
a. 1/8 of the original value
b. 1/4 of the original value
c. 1/2 of the original value
d. does not change
Explain
Homework Answers
as distance r is doubled B will become 1/2 of original
hence option C is correct
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