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Given the circuit below. R1 is 90Ω, R2 is 112Ω, R3 is 237Ω, and R4 is 129Ω. The potential difference between points a and b is 65V .

393_Circuit Diagram.gif

Part A

What is the current and potential difference across R1?

Part B

What is the current and potential difference across R2?

Part C

What is the current and potential difference across R3?

Part D

What is the current and potential difference across R4?

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