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 |
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