The state or quality of a material or membrane that causes it to allow liquids or gases to pass through it.
All materials are magnetized when placed in the magnetic field . The material magnetized by the effect of a magnetic field is called magnetic permeability.
All materials are magnetized when placed in the magnetic field . The material magnetized by the effect of a magnetic field is called magnetic permeability.
What is the relative permeability of the material?
A certain core material has an actual permeability of 4.40 * 10^-2 H/m. What is the relative permeability of the material?
1) 35,000
2) 140,000
3) 176,000
4) 552,000
Thanks!!!
1) 35,000
2) 140,000
3) 176,000
4) 552,000
Thanks!!!
Total permeability = μₒ*μᵣ
μₒ = permeability of empty space (4π^-7 H/m)
μᵣ = relative permeability
μᵣ = total perm. /μₒ = 4.40^-2 / 4π^-7 = 3.5^4 H/m ..(35,000 =ans 1)
μₒ = permeability of empty space (4π^-7 H/m)
μᵣ = relative permeability
μᵣ = total perm. /μₒ = 4.40^-2 / 4π^-7 = 3.5^4 H/m ..(35,000 =ans 1)
