Question

A straight conductor is carrying of 0.8amp. find the magnetic field at a distance 0.4m from it​

Answer 1

Answer:

Given

n=50turns, R=0.5m, I=5A,

 According to Bio-sawart Law 

magnetic flux density is given by B

⇒B=2Rμ0nI

⇒B=2×0.54π×10−7×50×5=3.14×10−3T