Building a Simple Circuit A Demonstration of voltage

Building a Simple Circuit A Demonstration of voltage and current.

Are electronics so complicated? b Electronic devices are more easily understood by knowing certain fundamentals. • • Voltage Current Ohm’s Law Capacitors, resistors, and diodes.

Voltage b What is voltage ( V ) ? • • • Voltage is amount of water you have. Batteries have voltage. Bigger the battery, bigger the voltage

Current b What is current ( I ) ? • Current is the amount of water flowing in the circuit. • When a circuit goes bad or gets hot it is because there is too much current.

Ohm’s Law b Why do I always hear about Ohm’s Law ? • Voltage, current, and resistance are all proportional to each other. • V=I x R. • Voltage = current x resistance.

Capacitors b What are capacitors ? • Capacitors are devices that store charge. • Bump in the circuit. – The water has to build up to go over the bump.

Resistors b What are resistors ? • Resistors slow the current down. • Current = Voltage/resistance. • Pegs in the board. – The more pegs you put in the board the harder it is for the water to go through.

Diodes b What are Diodes ? • Diodes only let current pass in one direction. • Glass door in the board. – Water can only go forward and not backward.

Play with it !!!

Build your own Circuit !!!

Circuits in your house b Circuits are everywhere. • Take some time to play with some electronic devices in your house. But, always be very careful to disconnect it from all electricity. Even small amounts of current can kill. Be very careful when playing with tv’s or computer monitors because they can often carry a charge for many hours.

Who works with circuits ? b Many jobs use electronics. • • Electrical Engineers. Electricians Technicians Many others

Electronics is fun b I am an electrical engineer and use electric circuits to solve real problems. b I love engineering !!!!!!