- #1
Chris Fuccillo
- 19
- 1
- Homework Statement
- A 5 turn coil is wound on a ferromagnetic core. The wound core is then placed in a external uniform magnetic field. The current is then turned on to flow through coil in the direction to generate a magnetic field 180 degrees opposite the external field. How much current and how large of and H field will be will be required to cause the core to saturate in the direction of the coils magnetic field/ opposite the external fields direction
Core information:
Turns on core N = 5
Saturation 1.56 T
µᵣ = 600,000
"µ = µₒ x µr" µ = 7.5398
Magnetic path r = 0.00115m
External magnetic field:
B(ext) = 0.35 T
vacuum µₒ = 4π x 10-7 =
Find the current i H field required to saturate the core H = , i =
- Relevant Equations
- H = Ni/(2πr)
B = u * H
I can easily calculate the core and currents required for the coil and core, i get confused do the the external field, any help please.