The figure shows equipotential lines in a region of space Th

The figure shows equipotential lines in a region of space. The equipotential lines are spaced by the same difference in potential, and several of the potentials are given.(Figure 1) Part A What is the approximate magnitude of the electric field at point c? What is the approximate magnitude of the electric field at point c?

100 V/m

300 V/m

800 V/m

1500 V/m

3000 V/m

Solution

Each line represents 50 Volts,Electric potential at point \"C\" is

V_c=400 Volts

and distance d=0.5 m

So electric field at point C

E=V_c/d =400/0.5

E=800 V/m