Energy in Capacitors: Two Square Air-Filled Parallel Plates That Are

Multiple Choice

Energy in capacitors: Two square air-filled parallel plates that are initially uncharged are separated by 1.2 mm, and each of them has an area of 190 mm². How much charge must be transferred from one plate to the other if 1.1 nJ of energy are to be stored in the plates? (ε₀ = 8.85 × 10^-12 C²/N ∙ m²)

A) 56 pC
B) 39 pC
C) 78 pC
D) 3.5 µC