Current needed to generate a magnetic field 1.2cm from a long strait wire?

What current is needed to generate the magnetic field strength of 5.0*10^-5 T at a point 1.2 cm from a long, straight wire?


5.0*10^-3 T at 1.2cm?

1.0 T at 1.2cm

10 T at 1.2cm.

2 Answers

  • 9 years ago
    Favorite Answer

    Use the equation: B=muo I/2piR

    so I=2piRB/muo

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  • mindy
    Lv 4
    3 years ago

    Great replies, just what I was looking for.

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