Automotive Electrical Basics

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Automotive Electrical Basics
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Atoms

• Electrons
• Protons
• Neutrons

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Atomic Structure

• Non-conductor
• Semi Conductor
• Conductor
• Levels of

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Capacitance

• What is it
• Where is it used

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EMF
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Ohms Law
V

• V AxR
• V IxR
• V IxO
• All the same

A x R
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Ohms Law

• V AxR
• A V / R
• R V / A

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Ohms Law

• Circuit Boards
• Create the same simple light bulb circuit
• Measure the precise battery voltage with the
  light bulb on.
• Measure the precise amperage in two places
• What is the resistance for the circuit

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Use ohms law to figure the resistance

• Add the 10 ohm resister at the switch
• use ohms law to figure current.
• use ohms law to figure volts lost at
• the resister
• the bulb
• Figure total
• Then prove with your meter

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Ground side

• Add a second resister (15 ohm) in the middle of
  the ground side
• use ohms law to figure volts lost at
• the 10 resister
• the bulb
• the 15 ohm resister
• Figure total (volts lost)
• Then prove with your meter

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Lab

• Dome light circuit
• Cars to work on
• Two person teams
• Work orders
• Tasks
• Tomorrow

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Magnets
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Magnetic flux lines
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Oposites Attract / Likes repel
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Permeability

• ability of materials to become magnetized

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Reluctance
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Electromagnetism
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Electromagnetism
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Electromagnetism
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Induction
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Induction
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Saturation
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EMI

• Electromagnetic Interference

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