Question

In Example 24.7, we analyzed wilison's lightning rod. The burge spherical conductor was later shown to be les offective than Frankier's peinted red. in act, large spharical conductors are often used in high-charge applications to prevent breakdown of the surrounding air (or another insulator). Suppose a spherical conductor must be able to hold a charge of 66.0 pC in air what must be its minimum diameter? (Assume a breakdown electric field of 3.0x 10 N/C.)

Answer 1