# Electrical Engineering - Magnetism and Electromagnetism - Discussion

### Discussion :: 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

 [A]. increases [B]. decreases [C]. remains the same [D]. doubles

Explanation:

No answer description available for this question.

 Ankita Jain said: (Feb 12, 2011) If area is increases flux density will be decreases because they are inversely proportional to each other. B=flux/area.

 Raja Gopal said: (Nov 23, 2011) flux density = flux/area,web/m^2 so flux will decrease

 Parmanand K Patel said: (Jun 27, 2012) Apart from this, it is well known that density is inversely proportional to area. There fore increase in one will decrease another.

 Robert S Mashauri said: (May 23, 2014) 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.

 Prasad said: (Aug 2, 2014) B = flex/area. But as que flex same. So B same. How decrease?

 Rani said: (Sep 17, 2014) Area of cross section increased. That is inversely proportional to the flux density.

 Omprakash Sinha said: (Oct 5, 2015) If cross section area is increase then the flux is decrease.

 Bharath said: (Jul 27, 2016) Flux density and cross sectional area are inversely proportional. How?