A current of 4.83 A in a long straight wire produces a magnetic field of 1.15 #mu#T at a certain distance from the wire. What is this distance?

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Answer 1 · 2017-05-25T09:03:00

#"answer d=0.84 m"#

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#B=K*(2i)/d#

#"Firstly,we should convert the "mu T" to Tesla. " 1muT=10^(-6)T#

#K=10^(-7)" , i=4.83 A , B=1.15"*10^(-6)T#

#1.15*10^(-6)=10^(-7)((2*4.83))/d#

#d=((2*4.83*cancel(10^(-7))))/(1.15*cancel(10^(-6))#

#d=(2*4.83*10^(-1))/(1.15)#

#d=(9.66*10^(-1))/(1.15)#

#d=(0.966)/(1.15)#

#d=0.84 m#