| A | B |
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| Four 140-ohm lightbulbs are connected in series. What is the total resistance of the circuit? What is their resistance if they are connected in parallel? | ??? |
| Three 40-ohm lightbulbs and three 80-ohm lightbulbs are connected in series. (a) What is the total resistance of the circuit? (b) What is their resistance if all six were wired in parallel? | ??? |
| Given only one 30-ohm and one 50-ohm resistor, list all possible values of resistance that can be obtained. | ??? |
| Suppose that you have a 500-ohm, a 900-ohm, and a 1.40-kiloohm resistor. What is (a) the maximum, and (b) the minimum resistance that you can obtain by combining these? | ??? |
| Three 240-ohm resistors can be connected together in four different ways, making combinations of series and/or parallel circuits. What are these four ways and what is the net resistance in each case? | ??? |
| Eight lights are connected in series across a 110-V line. (a) What is the voltage across each bulb? (b) If the current is 0.40 A, what is the resistance of each bulb and the power dissipated in each? | ??? |
| Eight 7.0-W Christmas tree lights are connected in series to each other and to a 110-V source. What is the resistance of each bulb? | ??? |
| A 75-W, 110-V bulb is connected in parallel with a 40-W, 110-V bulb. What is the net resistance? | ??? |
