Building a Simple Circuit

1
Building a Simple Circuit

• A Demonstration of voltage and current.

2
Are electronics so complicated?

• Electronic devices are more easily understood by
  knowing certain fundamentals.
• Voltage
• Current
• Ohms Law
• Capacitors, resistors, and diodes.

3
Voltage

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

4
Current

• 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.

5
Ohms Law

• Why do I always hear about Ohms Law ?
• Voltage, current, and resistance are all
  proportional to each other.
• VI x R.
• Voltage current x resistance.

6
Capacitors

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

7
Resistors

• 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.

8
Diodes

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

9
Play with it !!!
10
Build your own Circuit !!!
11
Circuits in your house

• 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 tvs or computer
  monitors because they can often carry a charge
  for many hours.

12
Who works with circuits ?

• Many jobs use electronics.
• Electrical Engineers.
• Electricians
• Technicians
• Many others

13
Electronics is fun

• I am an electrical engineer and use electric
  circuits to solve real problems.
• I love engineering !!!!!!