Name:

Quiz 2

Regarding Reading 2.

1. If electric circuits were really water flowing through pipes, what would current, voltage and resistance be? (metaphorically speaking)
2. Your house is powered by a 120V current, and you like the ambiance of 50-watt orange light bulbs. What is the amount of current that flows through the bulb, and what is the resistance of the bulb? (in theory)
3. How did early bi-directional telegraph systems save wire? (By using a...)
4. Once you have a ___________ (question 3), you can replace it with... what?
5. Regarding the telegraph, what mental paradigm did Samuel Morse have to overcome before he could envision Morse code?
6. In a nutshell, what is a relay? Draw a simple relay with a short explanation about how it works.