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Quiz 2

Regarding Reading 2.

1. In your own words, briefly describe the history of the Braille code. (who, what, when, where, why, how)
2. The book says that Braille is binary. Explain.
3. If electric circuits were really water flowing through pipes, what would current, voltage and resistance be? (metaphorically speaking)
4. 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)