Learning outcomes part 4

• a capacitor consists of two metal plates separated by an insulating material.

• a capacitor can store an electric charge, and that its ability to store a charge (capacitance) depends upon the area of the plates and their separation.

• Understand that capacitors block direct current but allow alternating current to pass by continuously charging and discharging.

• The effect described above of the current flowing in a DC circuit until the plates are charged is used to effectively BLOCK a DC current.

• However, when an AC is applied to a capacitor then the current continues to "apparently flow" due to the continuous charging and discharging of the capacitor each cycle of the AC wave form.

• larger values of capacitor may be polarised and must be correctly connected.

Can you fill in the blanks?

Symbol	Fill in the type of capacitor represented