Transcription: The topic for this lesson is Ohm's Law and Resistance. Ohm's Law states that the voltage or potential difference between any two points of a conductor or circuit is directly proportional to the current flowing through those points provided the temperature, humidity and all other physical conditions remain unaltered. Ohm's Law expressed mathematically is E equals I times R where E is equal to the emf in volts,current in amperes and R the resistance in ohms. Since E is directly proportional to R, the constant of proportionality is R. This is termed resistance and is denoted by the symbol Omega. ...
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