(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A Vbatt = 1.5 V battery stores Ubatt = 2.25 kJ of energy. I want to replace this battery with a charged capacitor that stores the same amount of energy and puts out the same voltage. That is, I want a capacitor such that UC = 2.25 kJ and VC = 1.5 V. What must the capacitance of such a capacitor be? What charge must this capacitor hold? Reasonable capacitors typically have a capacitance of at most one farad. Is this capacitor a reasonable replacement for the battery?

2. Relevant equations

U=1/2 CV^2

3. The attempt at a solution

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# Homework Help: Replacing a battery with a charged capacitor

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