WEEK 1

Electrical terms: Electricity
-Electricity is the flow of electrons from atom to atom.
Direct current: (DC)
- Current flows in only one direction.
Alternating current:(AC)
-follows in one direction,then it flows in the other direction.
Diode:
-If power is flowing, the diode will only allow the power to go one way..
In a alternator is has "three" diodes

 NOTE:         Definitions:

-Volt: Practical unit of electromotive force and potential difference.
-Ampere: Unit of current amps.
-Ohms: Unit of resistance.
-Watts: Practical unit of power.
-Farael: Unit of capacitance.
-Hertz: Unit of frequency.

Week 2

we tested out fuses,checked which one is blown.How to find out why the high stop light  is not
working or why the horn is not working.

-W:Watts.                             Horns
-V: Volts.
-A:Amps.               2x12=50                                      12/4.16=0.028 amps
                             50/12= 4.167 amps

Terminal number are 85+86,terminal 85 goes to a earth or ground source.Terminal 86
is supplies power through a swtich to complete the circuit.

Circuit Diagram:                                   voltage-is a power source.
                                                               Ampere-How much current is going threw.
                                                              Diode-is a current that only goes one way.

Type of circuit:
-Glass fuse
-Ceramic fuse
-Blade fuse
-Fusible links
-Thermal circuit breakers

Technique:
-Put a coil around the screw driver, and when this done,
the screw driver becomes a magnet which helps to get to
limited space areas.

Components:
-battery-is a power source
-wire- conductor
-fuse-conductor
-switch- switching device

Function:
-Battery -power source is going threw the relay which is n.o 30,
the battery supplies the power.
-Wires carry it through the fuse. the relays to terminals 30.
-The relays functions as a remote switch. The main current flows from the battery to
the user or headlight bulb.It is activated by a low current coil that acts as a magnet to
close the switch.

30-battery input
87- normal headlight power

Note: when power is on, the coil becomes a magnet which pulls the switch to 87 and turns on the headlight and when power is off, there will beon magnet coil and that causes no headlights to be working.

Whats is a circuit?

-A circuit is a closed loop that electrons can travel in a source of electricity,such as a battery,provides electrical energy in the circuit.Unless the circuit is complete, that is, making a full circle back to the  electrical source ,no electrons will move.

Volts= Amps x resistance
Resistance=Volts/ amps
Amps=volts/ resistance

Compenents:      TERMS:

-Conductor-Material forming path for the flow of current.
-Insulator-Material that will not readily conduct electricity.
-Negative charge-The flow of current fro  negative to positive.
-Semi conductor-Materials that act as conductors or insulators depending
on temperature ,physical or electrical conditions.
-Positive charge-The flow of current from positive to negative.
-Electron current flow-Electron.
-Conventional current flow- proton
-Watts-practical  power unit.