Question: 7. Two parallel plates are connected to a 120-V DC power supply and separated by an air gap. The largest electric eld in air is

7. Two parallel plates are connected to a 120-V DC power supply and separated by an air gap. The largest electric eld in air is 3.0 x 10 NIC. (When this \"breakdown value\" is exceeded, charge is transferred beMeen the plates. reducing the separated charge and the eld through sparks or arcing.) Calculate the smallest possible gap between the plates. 8. Three charges are placed at the comers of an equilateral triangle with sides of length 2.0 m. as shown in Figure 18. (a) Calculate the total electric potential energy of the group of charges. (b) Determine the electric potential at the midpoint of each side of the triangle. +4.0 #0 4.0 11C +2.0 \"C Flglre 18

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