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OpenStudy (anonymous):
The strength of a magnetic field follows _____. an inverse square law the law of domains Coulomb's law the law of poles
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OpenStudy (anonymous):
Will give medals!(:
OpenStudy (anonymous):
Hint: The magnetic field lines for infinitely long straight wire \[B = \frac{ \mu _0 I }{ 2 \pi } \times \frac{ 1 }{ r }\]
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