Question

19.17 Electric Potential in a Uniform Electric Field What is the electric field strength between two parallel conducting plates if the plates are separated by 2.30 mm and a potential difference of 4.9x 10 V is applied? Does the electric field strength exceed the breakdown strength for air (3.0x10° V/m)i? Yes No Submit Answer Tries o/10 How close together can the plates be with this applied voltage? Submit Answer Tries 0/10

Answer 1

E = delta v/d = 4.9 times 10^3/2.3 times 10^- 3 = 2.13 times 10^6 v/m 2) No, It doesn't exceed the breakdown 3) E = delta y/d implies 3 times 10^6 = 4.9 times 10^3/d implies d = 1.63 mm