#6.1.2a
p.d.–charge graph for a capacitor; energy stored is area under graph
#6.1.2b
energy stored by capacitor; \(W = \dfrac{1}{2}QV \), \(W = \dfrac{1}{2}\dfrac{Q^2}{C} \) and \(W = \dfrac{1}{2}V^2C \)
#6.1.2c
uses of capacitors as storage of energy.