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9. In this section of a circuit, resistors Ri, Ro, and Rs combine for an equivalent resistance of 4.0 Ω. What is R2? Let R1-60 Ω and R3-20 Ω. ( point) Ri 10Ω 012Ω 3.0 Ω 1.2Ω
8. Three resistors are connected into the section of a circuit described by the diagram. Then the (I point) wire is cut at point t, and the two cut ends of the wire are separated. Through which of the three resistors, if any, does current still flow? R2 x R R12z none of the resistors all three resistors Ri only R1 and Re only
7. In the circuit described by the diagram, resistors Ri and R4 are connected (I point) R2 a Ri Rs b Ra Oin parallel O both in series and in parallel in series O neither in series nor in parallel
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