O'Reilly logo
  • Sanjog Birla thinks this is interesting:

When the flux lines are close together, the ‘tube’ of flux is squashed into a smaller space, whereas when the lines are further apart the same tube of flux has more breathing space. The flux density (B) is simply the flux in the ‘tube’ (image) divided by the cross-sectional area (A) of the tube, i.e.

image(1.1)

From

Cover of Electric Motors and Drives

Note

imp