Capacitance

• Capacitors


  Electric component that temporarily stores charges within a circuit.
• Dielectric


  impedes the continuous passage of electric current through the capacitor and store it until it is discharged at a later time
• Capacitance


  Amount of charges stored in a capacitor per unit of electric potential
• Formula for Capacitance


  $C=$$\frac{Q}{V}$

  Q= Charge stored on each plate

  V= voltage applied to each plate

  Unit is F or Farad
• Determine the effects on capacitance

  Factors that affect the capacitance of a capacitor

  A) increase

  B) decrease

  C) increase

  D) decrease

  E) decrease

  F) increase

  
• Capacitors


  function when they are connected to a circuit. Separate treatments should be done for capacitors connected in series and in parallel.
• Series connection


  The total charge stored by this type of circuit connection containing the capacitors is of equal amount or constant throughout the circuit.
• Parallel Connection


  The total voltage stored by this type of circuit connection containing the capacitors is of equal amount or constant throughout the circuit.
• Formula for Series Connection


  $𝑞_{𝑡𝑜𝑡𝑎𝑙}=$$𝑞_1=$$𝑞_2=$$𝑞_3…$

  $𝑉_{𝑡𝑜𝑡𝑎𝑙}=$$𝑉_1+$$𝑉_2+$$𝑉_3…$

  $C_{𝑡𝑜𝑡𝑎𝑙}=$$(\frac{1}{C_1}+$$\frac{1}{C_2}+$$\frac{1}{C_3}…)^{-1}$

  $V_1 =$$\frac{q_1}{C_1}$
• Formula for Parallel Connection


  $q_{total}=$$q_1+$$q_2+$$q_3...$

  $V_{Total}=$$V_1=$$V_2=$$V_3...$

  $C_{total}=$$C_1+$$C_2+$$C_3...$

  $q_1=$$C_1V_1$