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awesome2999

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Hi everybody, i have got a question,any help will be much appreciated

A ferrite ring core has a slot cut in it such that the plane of the slot contains the axis of the toroid. It is wound with 26 turns.

i have attached the picture of the this problem.

Relative permeability = 680

Bsat = 0.38T

Ignoring leakage and fringing:

What is the inductance of the coil?

At what current does the ferrite saturate

the equation I'm using is N^2/((lair/MoMr*Aair)+(l iron/MoMr*Airon))

l air is 0.0003m

Aair = Airon= 1.22518E-3 i calculated this one

i'm not sure for liron shoud i use 0.0039*pi and substruct from lair. but still i don't get the right answer.

the right answer should be is L=0.000139 H and I=5.5796 A

for the current still don't get the answer right. I'm using B/MoMr=H and then H=NI/2Pi*r

please.any help will be much appreciated.

A ferrite ring core has a slot cut in it such that the plane of the slot contains the axis of the toroid. It is wound with 26 turns.

i have attached the picture of the this problem.

Relative permeability = 680

Bsat = 0.38T

Ignoring leakage and fringing:

What is the inductance of the coil?

At what current does the ferrite saturate

the equation I'm using is N^2/((lair/MoMr*Aair)+(l iron/MoMr*Airon))

l air is 0.0003m

Aair = Airon= 1.22518E-3 i calculated this one

i'm not sure for liron shoud i use 0.0039*pi and substruct from lair. but still i don't get the right answer.

the right answer should be is L=0.000139 H and I=5.5796 A

for the current still don't get the answer right. I'm using B/MoMr=H and then H=NI/2Pi*r

please.any help will be much appreciated.