Please enable JavaScript.
Coggle requires JavaScript to display documents.
Capacitor and Dielectrics (Energy (What type of energy stored? (Electric…
Capacitor and Dielectrics
Capacitor
Notes
Types
Square/Parallel
Concentric
Definition
Ratio of number of charges and potential difference between two plates
Formula
Square/Parallel
Concentric
Capacitance only depends on physical properties
Circuit
Series
Effective Capacitance
What is kept constant?
The charges remain constant
What is not constant?
Potential difference
Parallel
Effective Capacitance
What is kept constant?
The potential difference remain constant
What is not kept constant?
The charges
The effective charges are the algebraic sum of each charges stored on capacitor
Energy
What type of energy stored?
Electric Potential Energy
Formula
Energy Field Density
How do capacitor store charges?
Charging
Resistor is connected alongside capacitor
Known as RC circuit
The source voltage supplies to the potential difference of capacitor
Equation
Relevant Graphs
How do capacitor release charges?
Discharging
Capacitor is connected to a resistor without battery
Potential difference of capacitor equals to the potential difference of resistor
Equation
Relevant Graphs
Time constant
Time for capacitor to acquire 63.2% of full value of charges or current to decrease to 36.8%. (Likewise for discharging)
Dielectric
Notes
Functions
Prevents breakdown of capacitors
Able to charge induced
Increases Capacitance
Symbol
Relation
Charges
Potential Difference
Relative permittivity times initial potential difference = Final potential difference after inserting dielectric
Capacitance
