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Physics

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#1. Ten Christmas lights are connected in series and plugged into a 120 V wall outlet. Each light is identical and can be thought of as a resistor.

a) What should the value of this resistance be if the total string is to dissipate 50 W?

b) How much power is dissipated in each resistor?

c) How much current flows in each resistor?



#2. Ten Christmas lights are now connected in parallel. Repeat problem #1 for this new design.



#3. Which string lights (#1 or #2) makes a better consumer product? Why?

  • Physics - ,

    I will be happy to critique your thinking.

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