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A battery and a resistor are wired into a circuit. The resistor dissipates 0.50 W. Now...

A battery and a resistor are wired into a circuit. The resistor dissipates 0.50 W. Now two batteries, each identical to the original one, are connected in series with the resistor. What power does it dissipate?

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If I missed something feel free to leave a comment.
atleast before giving downvote.
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