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Automotive Service Fundamental - Part 1: Basic Electrical

Basic Electricity Functional - Part 1: Voltage, Current, and Resistance



This lesson covers basic electricity functional in Voltage, Current, and Resistance in general that you should be aware and understand before going into automotive electrical lessons.





 

VOLTAGE vs CURRENT vs RESISTANCE


Here are three basic electric fundamental and measurements you should be aware of:


Voltage: the difference in charge between two points.

- UNIT: (V) volts


Current: the rate at which charge is flowing.

*Note: The circuit must be CLOSED for current to flow through.

- UNIT: (I) amps


Resistance: a material's tendency to resist the current.

- UNIT: (R) ohms



 

VOLTAGE, CURRENT, & RESISTANCE'S

ELECTRIC CIRCUIT ANALOG TO WATER CIRCUIT


Voltage: electric charge to water pressure


Current: electric flow to water flow


Resistance: electric's usage such as light, motor, etc. to water valve, water turbine, etc.


WATER CIRCUIT VS ELECTRIC CIRCUIT

 



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