Purple Umbrellas
• Easy
There is 100 V flowing through [sic] a circuit with a 20 A [sic] resistor. What is the current?
• Medium
Explain the relationship between voltage, current and resistance in series and parallel circuits, respectively.
• Hard
You must wire a 2-room house with 2 outlets in each room. Each room must have:
-- a T.V.
-- a space heater
-- a hairdryer
There must be a radio, a soldering iron, and a microwave in one of the rooms -- wire the house!
Blue Hens
• Easy
What is Ohm's law and how does it apply to this circuit? [Drawing of 12 V battery connected across an 8 ohm resistor.]
• Medium
A hair dryer draws a current of 12 A when it is connected to a 120 V ac line. What is the power consumption of the dair dryer?
• Hard
An 800 W toaster, a 1000 W iron, and a 700 W food processor are all connected to a 115 V circuit with a fuse at 15 A. If these appliances are all turned on will the fuse blow? Explain.

"http://www.physics.udel.edu/~watson/scen103/exer6.html"
Last updated Oct. 9, 1996.
Copyright George Watson, Univ. of Delaware, 1996.