Concept Check 1
I am in your Physics 208 class and the Concept problem during lecture
kind of confused me. I would have thought the ratio of the charges of the
particle would be the ratio of the total lines coming from the
particles. The A particle had 24 unconnected lines but shared 8 with the
B particle. I would think the A particle would have 24+8 compared to the
B's 8, and having a ratio of 32:8 or 4:1?
Right you are! I slipped when I accepted the statement that there were
24 lines emanating from A, so that the ratio was 3. Indeed there are
32, for a ratio of 4. Thanks for following up on that.
Concept: Electric Field Lines
- What are the relative magnitudes of the charges?
- What are the signs of the charges?
- In what regions of space is the electric field the strongest? weakest?
Adapted from Tipler Problem 18-5 and Figure 18.26.
Last updated Sept. 5, 1997.
Copyright George Watson, Univ. of Delaware, 1997.