An incandecent light bulb has a power rating of 60W. A compact flourescent light (CFL) has a power rating of 45W. Each bulb puts out the same amount of light, and is connect to a 120V source for 60s. Using the CLAIM, EVIDENCE, REASONING format, which bulb is the most energy efficient? CLAIM: EVIDENCE: REASONING:

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Maximum power transfer theorem

A resistive load will consume maximum power from a network when the load resistance is equal to the resistance of the network as viewed from the open-circuit terminals, with all energy sources removed leaving only the internal resistances. Physicist Moritz von Jacobi introduced the maximum power transfer theorem in 1940. Therefore, this theorem is also known as Jacobi's law.