Question: 1. If you have a Parallel resistor circuit with two resistors, R 1 and R 2 , if R 1 = 15 Ohms and R
1. If you have a Parallel resistor circuit with two resistors, R1 and R2, if R1 = 15 Ohms and R2 = 5 Ohms, what is the RTotal (choose the closest answer)?
| a. | 10 Ohms | |
| b. | 3 Ohms | |
| c. | 20 Ohms | |
| d. | 4 Ohms |
2. If you have an electric car that consumes power from the batteries at 100 Volts with a steady current of 20 Amps for 10 hours (great batteries for a long trip!), what is the amount of power being drawn from the batteries?
| a. | 50 W | |
| b. | 200 W | |
| c. | 5 W | |
| d. | 2000 W |
3. If you have a series resistor circuit with two resistors, R1 and R2, if R1 = 100 Ohms and R2 = 2000 Ohms, what is the total resistance RTotal?
| a. | 300 Ohms | |
| b. | 3000 Ohms | |
| c. | 2100 Ohms | |
| d. | 200 Ohms |
4. If you have an electric car that consumes power from the batteries at 100 Volts with a steady current of 20 Amps for 10 hours (great batteries for a long trip!), what is the amount of energy consumed for the 10 hour trip?
| a. | 50kW-H | |
| b. | 20 kW-H | |
| c. | 5 kW-H | |
| d. | 2 kW-H |
5. If you have a rock with mass 2.5kg and with a volume of 6.5L, what it its weight density?
| a. | 16 kg/L | |
| b. | 0.40 kg/L | |
| c. | 3.8 N/L | |
| d. | 0.38 N/L |
6. (Ohm's Law) If you have a circuit with a 1.5V battery, and a light bulb that has a resistance of 10.0 Ohms, what is the current flowing through the light bulb?
| a. | 0.67 A | |
| b. | 1.5 A | |
| c. | 0.15 A | |
| d. | 15 A |
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