Electrical Gizmoid

To be answered in your lab books as you explore: (include evidence, documentation, not just answers)

1) How is an LED different than a light bulb?

2) How do you hook up a DPDT switch so that it can reverse the direction of a motor? (Include a diagram of how you would hook a power source and motor up to such a switch)

3) How does a potentiometer work to control the speed of a motor? What do you think is inside? How do you hook one up? (Include a diagram) (Use a power transformer to power this)

4) Soldering (any hints recorded would be good)

5) Build a device that:

a) has an on/off switch with an indicator light

b) has a reversible direction switch with indicator lights and labels (clockwise, etc.)

c) Make sure that at least the switches have soldered connections.

d) Has a potentiometer that controls the speed of the motor

e) is decorated with light bulbs that don't vary in brightness as you control the speed of the motor.

f) Draw a diagram of the circuit (we'll probably do this later, but take notes in your book for later use.)

g) has clean, easy to analyze wiring.