Four resistors having resistances of 20 ohms, 40 ohms, 60 ohms, and 80 ohms are connected...
Four resistors having resistances of 20 ohms, 40 ohms, 60 ohms, and 80 ohms are connected in series across an ideal dc voltage source. If the current through this circuit is 0.50 A, what is the voltage of the voltage source?
| 20 V |
| 40 V |
| 60 V |
| 80 V |
| 100 V |
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