Electrical Engineering - Magnetism and Electromagnetism - Discussion

Discussion Forum : Magnetism and Electromagnetism - General Questions (Q.No. 24)
24.
What is the reluctance of the circuit in problem 9 if the flux is 275 Wb?
0.0066 At/Wb
0.066 At/Wb
8,727 At/Wb
872 At/Wb
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
17 comments Page 2 of 2.

Naveen said:   1 decade ago
reluctance=l/(mA)
l-magnetic circuit length not the inductance
m-permeability
A-cross sectional area
flux and cross sectional area given for the problem we need l to find the reluctance..

Sandyakiran said:   1 decade ago
MMF means magneto motive force.

Shailaja said:   1 decade ago
What is MMF value?

Roshini said:   1 decade ago
How to calulate mmf.reluctance=mmf/flux ?

Md. Shamim said:   1 decade ago
In magnetic circuit Reluctance have the same role as Resistance in electrical circuit. Resistance=EMF/I and Reluctance= MMF/FLUX=AT/FLUX

Ish said:   1 decade ago
s=l/ma[ wher l=inductance , m=permeablity (4*3.14*10^(-7)) a=area]

Vishal said:   1 decade ago
It is the oppose or resist of the magnetic flux in magenetic circuit.


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