Ohm’s Law explains the relationship between voltage (V or E), current (I) and resistance (R)
Used by electricians, automotive technicians, stereo installers
1. Assuming the resistance does not change:
As voltage increases, current increases.as voltage decreases, current decreases.
2. Assuming the voltage does not change:
As resistance increases, current decreases.
As resistance decreases, current increases.
Why do we need resistors
To decrease the amount of voltage applied to a component
The value of the resistor is marked on the body using coloured rings
What is Voltage? What is Current? What is Resistance?
http://www.youtube.com/watch?v=nj7ewZmG3eo&feature=related
What is a load It is a any electric load on a circuit that
does work.
Example: Power windows, light bulbs, motors.
What is Voltage? What is Current? What is Resistance? What are wiring diagrams? What are the different
circuits and there characteristics?
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