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A straight wire carrying current has a magnetic field strength .6 tesla at a distance x from the conductor.What is the magnetic field at distance 2x.

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Here,

i=2A

μo=4π×10−7Hm−1

r=5m

Magnetic induction due to long straight wire at a perpendicular distance is given by,

B=2πrμoi

putting the given values we get,

B=2π×54π×10−7×2

∴B=8×10−8T

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[tex]{\underline{\huge{\tt{\fbox{\red{Thanks}}}}}}[/tex]

I hope it will help you ✌.