(a) If more than one field line reenters the donut in Figure 24.9a, what happens to the field line flux?

(b) Are there any closed surfaces enclosing a charged particle through which the field line flux is different from that through a simple sphere around that particle?

Transcribed Image Text:

Figure 24.9 The number of field lines exiting a closed surface minus the number entering it is always equal to the number of field lines generated inside the surface. (a) (b) add to zero 76 out in out out out E out 2 3 out out add to zero out 6 E in 3 2