Chapter 24, Problem 23P

Figure P24.23 shows several equipotential lines, each labeled by its potential in volts. The distance between the lines of the square grid represents 1.00 cm. (a) Is the magnitude of the field larger at A or at B? Explain how you can tell. (b) Explain what you can determine about $\stackrel{\to }{E}$ at B. (c) Represent what the electric field looks like by drawing at least eight field lines.

Figure P24.23