A bicycle LED headlight requires 5 V, 250 mA to operate. Using Ohm’s law, determine the(adsbygoogle = window.adsbygoogle || []).push({});

equivalent resistance of the light. What is the power consumption rate in W? How many

electrons pass through per second? It is powered by four AA rechargeable battery in series. Each battery provides 1.25 V and has a specification of 2300 mA-Hour. How many second would the battery last?

The first part i used R = v/I

The second part I know P = VI but am not sure what to use for time because it does't give one.

The third part i dont know about. I am not looking for the answer but help on how to get there thank you

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# Homework Help: Ohm's Law and Power ?

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