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There is a thin conducting wire carrying...

There is a thin conducting wire carrying current. What is the value of magnetic field induction at any point on the conductor itself?

A

`mu_0/(4pi)(idl)/(r^2)`

B

`(mu_0)/(4pi)(idl)/(r)`

C

Zero

D

`(mu_0)/(4pi)(idl)/(r^3)`

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