Electrical Engineering - Magnetism and Electromagnetism - Discussion
Discussion Forum : Magnetism and Electromagnetism - General Questions (Q.No. 4)
4.
If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density
Discussion:
10 comments Page 1 of 1.
Bien said:
4 years ago
The formula related to this question is B= flux/area.
as we put it in simple eq.
case 1:
flux= 1
area= 1
B= 1.
case 2:
flux= 1 (remain the same)
area= 2 (increases)
B= 0.5 (decreases).
as we put it in simple eq.
case 1:
flux= 1
area= 1
B= 1.
case 2:
flux= 1 (remain the same)
area= 2 (increases)
B= 0.5 (decreases).
Lalit said:
5 years ago
As, We all have seen that, flux density will get decrease but Flux = mmf/reluctance.
Flux = AT * N^2*A*miu/L
So we can see if area get Double then flux will also get double.
Now flux density = 2 * flux / 2 *Area.
So, flux density will remain the same.
Flux = AT * N^2*A*miu/L
So we can see if area get Double then flux will also get double.
Now flux density = 2 * flux / 2 *Area.
So, flux density will remain the same.
Bharath said:
9 years ago
Flux density and cross sectional area are inversely proportional. How?
(1)
OMPRAKASH SINHA said:
10 years ago
If cross section area is increase then the flux is decrease.
Rani said:
1 decade ago
Area of cross section increased. That is inversely proportional to the flux density.
Prasad said:
1 decade ago
B = flex/area.
But as que flex same.
So B same.
How decrease?
But as que flex same.
So B same.
How decrease?
(1)
ROBERT S MASHAURI said:
1 decade ago
So here the factor which affect the resistance is take place (the cross-section of wire area) if you decrease the resistance of wire the current is decrease.
Parmanand K Patel said:
1 decade ago
Apart from this, it is well known that density is inversely proportional to area. There fore increase in one will decrease another.
Raja gopal said:
1 decade ago
flux density = flux/area,web/m^2 so flux will decrease
Ankita jain said:
1 decade ago
If area is increases flux density will be decreases because they are inversely proportional to each other. B=flux/area.
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