LGC IOTA Chapter 4 Capacitance

The ability for a component to Collect and Store Electrical Charge.

• Capacitance

• Current

• Resistance

• Voltage

2 Functions of Capacitors

• Block Alternating Current (AC)

• Block Direct Current (DC)

• Add to Resistance

• Store Electrical Charge

The Symbol for Capacitance is ...

• A

• C

• CP

• F

The Units for Capacitance is ...

• Amphere (A)

• Farads (F)

• ohms (Ω)

• Volts (V)

0.000001 Farad (F) or 1 microFarad can be written as

• 1 μF

• 1 nF

• 1 pF

• 1 kF

2 types of capacitors

• Polarised
  capacitors

• Non-polarised capacitors

• Solar

  capacitors

• Positive

  capacitors

Which of the following capacitors has a positive & a negative lead connection?

• Polarised
  capacitors

• Non-polarised
  capacitors

DO NOT charge using higher current or voltage than specified.

• TRUE

• FALSE

DO NOT connect the leads in reverse order (polarised capacitor)

• TRUE

• FALSE

DO NOT discharge by force (eg by connecting to an external power supply).

• TRUE

• FALSE