What intermediate power setting is available

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Reference no: EM131069022

We want to design an electric space heater to operate from 120V. Two heating elements with resistances R1 and R2 are to be used that can be operated in parallel, separately, or in series. The highest power is to be 1200 watts and the lowest power is to be 300 watts. What values are needed for R1 and R2? What intermediate power setting is available?

Reference no: EM131069022

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