By Damien Coleman
You should rely on your knowledge of fundamental electrical principles when fault-finding an electronic sub-system.
Below is a list of the most common physical laws which can be used on a daily basis to assist with accurate repairs in a timely and productive manner:
- The electric current in a circuit is proportional to the applied voltage and inversely proportional to the circuit resistance
- The sum of the voltage drops in a series circuit is equal to the applied voltage
- When an EMF is generated by a change in magnetic field, an induced voltage of opposite polarity is set up which opposes the direction of the applied change which produced it
- Like charges repel and unlike charges attract, which is directly proportional to the product of the charges and inversely proportional to the square of the distance between them
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Date posted: 11 December 2016