Connect three bulbs with a resistance of 60 Ω to a DC voltage source, as shown in the figure. An ammeter with an internal resistance of 20 Ω, which is included in the circuit at point X, shows a current of 0.15 A. What is the driving voltage of the source?

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A: Series Circuit Parallel Circuit

Q: Power Potential

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A: R1 = 2.96 ohm; R2 = 5.31 ohm; R3 = 8.88 ohm;

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A: Please see the answer in step 2

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