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Electricity - Coggle Diagram

- - - - It is also called an incomplete circuit
      - The switch is open
      - Hence, there is a break in the circuit
      - In this example, the light bulb will light up
      - An open circuit can also be caused by faulty working devices or a break in the protective devices
      - No electricity flows in the circuit
    - - It is also called a complete circuit.
      - The switch is closed
      - Hence, the circuit is complete
      - Electricity flows continuously in the circuit
      - In this example, the light bulb lights up
  - - - They are materials that do not allow electricity to pass through them
    - - They are materials that limit or regulate the amount of electricity passing through them
      - They convert electrical energy into other forms of energy
    - - They are materials that allow electricity to pass through them easily
        
        Silver
        
        Other materials
        
        Copper
  - - - Resistance in electrical component resist the flow of electric charges.
        
        Hence, electrical energy is converted into heat energy when it is passed through the components
      - The greater the resistance a material has, the greater the amount of heat energy is porduced
      - Different materials have different resistance
      - Electrical energy can be converted into heat energy
    - - Electrical energy can produce a magnetic effect
      - Electromagnets are widely used in door bells, telephones and magnetic cranes that separate
      - When an iron bar is brought near or wound around by conducting wire, electric current flowing in the wires will induce the to be a temporary magnet
      - Electromagnets can be increased by the following ways
        
        Increase the amount of current in the coil
        
        Winding the coil around an iron core
        
        Increase the number of turns of wire in the coil
      - This type of magnet is called an electromagnet
- - - - The negative terminal of the ammeter is connected to the negative terminal of the power source
      - The positive terminal of the ammeter is connected to the negative terminal of the power source
      - The ammeter must be connected in series with other electrical components when measuring electric current in a circuit
      - Series circuit
        
        Electric current is the same at every point in the single loop regardless the other components are identical or different
        
        I = I1 = I2 = I3
      - Parallel circuit
        
        Each loop has a specific amount of electric current flowing in it
        
        The total current, I, in the electric circuit is the sum of the current in al the loops
        
        I = I1 + I2 + I3
- - - - The total voltage, V, supplied by the power source is the sum of all the voltage in each eletrical component
        
        V = V1 + V2 + V3
    - - The voltage supplied by the power source is the same in each loop in the circuit
        
        V = V1 = V2 = V3
- - - - R = R1 + R2 + R3
  - - - The total resistance, R, in a circuit is determined by a reciprocal relationship
        
        1/R = 1/R + 1/R + 1/R
  - - - It has the lowest resistance, hence, electricity flowing in it can be too large
- - - - When more loads are added, the total resistance in the circuit increases.
      - When one load is damaged, it affects the functionality of the other loads
  - - - When more loops are added, the total resistance in the circuit decreases.
      - When one load is damaged, it does not affect the functionality of the other loops