1 .		One billion electrons pass a certain point in a microsecond. This corresponds to a current of [Hint]   0.00000016 A.   0.00016 A.   1x1015 A.   None of the above.
2 .		Three amps corresponds to how many electrons per second? [Hint]   1x1019   1.5x1019   1.9x1019   3x1019
3 .		What is the 'average' (rms) speed of the electrons in a wire at 30 oC? [Hint]   3.7x104 m/s   1.17x105 m/s   3x108 m/s   4.5x108 m/s
4 .		A 2 amp current flows in a conductor which has 1x1024 free electrons per meter. What is their average drift velocity in the direction of the current? [Hint]   1.25 m/s   125000 m/s   3x108 m/s   1.25x10-5 m/s
5 .		If the circuit in the above question is a 20 foot long wire in your automobile, how long would it take an electron to travel from the negative terminal to the positive terminal of the battery? [Hint]   1 second   2 hours   1 week   6 days
6 .		Two otherwise identical wires are made of different materials, the second having twice the resistivity of the first. The first has a resistance of 2 ohms, the second has a resistance of [Hint]   1 ohm.   3 ohms.   4 ohms.   Not enough information is given.
7 .		Two aluminum wires have the same diameter but the second is twice as long as the first. If the first has a resistance of 2 ohms, the resistance of the second is [Hint]   1 ohm.   3 ohms.   4 ohms.   8 ohms.
8 .		Two copper wires have the same length but the second has twice the diameter of the first. If the resistance of the first is 2 ohms, the resistance of the second is [Hint]   1/2 ohm.   1 ohm.   4 ohms.   8 ohms.
9 .		What is the resistance of a 10 km long copper wire with a diameter of 4mm? [Hint]   3.3 ohms   13.4 ohms   0.013 ohms   0.003 ohms
10 .		If the wire in the above question has a resistance of 10 ohms and is transmitting 10 kW at 1000 volts how much power is lost in the wire? [Hint]   10 W   100 W   1 kW   10 kW
11 .		If the power in the above question is being transmitted at 10000 volts, what is the power loss in the wire? [Hint]   1 W   10 W   1 kW   10 kW
12 .		Which has a higher resistance, a 60 watt or a 100 watt lightbulb? [Hint]   60   100   Both have the same
13 .		Which formula(s) can be used to calculate the power output of a battery? [Hint]   P = VI   P = RI2   P = V2/R   All of the above
14 .		Which formula(s) can be used to calculate the power output of a light bulb? [Hint]   P = VI   P = RI2   P = V2/R   All of the above
15 .		What is the internal resistance of a 1500 watt electric space heater operating at a standard house voltage of 120 V? [Hint]   19.2 ohms   13.6 ohms   9.6 ohms   6.8 ohms