Ohm’s Law a reminder that basic electronic circuits follow Ohm’s Law to some extent. Ohm’s Law V=I/R Ohm’s Law fails when significant temperature changes occur or when certain “non-ohmic” materials are used POWER Power is simply the energy required to do something. If you are moving a large number of electrons and moving them through something that is resistant to that movement, power is used. Power is voltage times current. Power is also voltage squared divided by resistance. In electronics, we use the flow of electrons to drive a variety of processes. P = I x V Power = Watts/time P = V 2 /R Resistors A resistor is a component that resists the f...
