CBC Auto Tech Automotive Electrical Basics

CBC Auto Tech Atoms n Electrons n Protons n Neutrons P 19

CBC Auto Tech Atomic Structure n Non-conductor n Semi Conductor n Conductor –Levels of

CBC Auto Tech Capacitance n What is it n Where is it used P 26

CBC Auto Tech EMF

Ohm’s Law V = AxR V = IxR V = IxO All the same V A x R P 24

CBC Auto Tech Ohm’s Law n V = AxR n A = V / R n R = V / A

CBC Auto Tech Ohm’s Law n Circuit Boards –Create the same simple light bulb circuit –Measure the battery voltage with the light bulb on. –Measure the precise battery voltage with the light bulb on. –Measure the precise amperage in two places –What is the resistance for the circuit

CBC Auto Tech Use ohm’s law to figure the resistance n Add the 10 ohm resister at the switch n use ohm’s law to figure current. n use ohm’s law to figure volts lost at: –the resister –the bulb n Figure total n Then prove with your meter

CBC Auto Tech Ground side n Add a second resister (15 ohm) in the middle of the ground side n use ohm’s law to figure volts lost at: –the 10 resister –the bulb –the 15 ohm resister n Figure total (volts lost) n Then prove with your meter

CBC Auto Tech Lab n Dome light circuit n Cars to work on n Two person teams n Work orders n Tasks n Tomorrow

CBC Auto Tech Magnets

Magnetic flux lines

CBC Auto Tech Oposites Attract / Likes repel

CBC Auto Tech Permeability ability of materials to become magnetized

CBC Auto Tech

Reluctance

Electromagnetism

Electromagnetism

Electromagnetism

Induction

Induction

Saturation

EMI n Electromagnetic Interference