3. What is ohms law?
Ohm’s Law explains the
relationship between voltage (V
or E), current (I) and resistance (R)
Used by electricians, automotive
technicians, stereo installers
8. General Rule.
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.
13. What can we use to measure?
Multi meters/ DVOM
14. Resistors
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
28. QUIZ
What is Voltage?
What is Current?
What is Resistance?
What are wiring diagrams?
What are the different circuits
and there characteristics?