An unknown resistor is connected between the terminals of a 3.00 V battery. Energy is dissipated in the resistor at the rate of 0.616 W. The same resistor is then connected between the terminals of a 1.50 V battery. At what rate is energy now dissipated? Number i Units
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We will first write an expression relating energy dissipation rate (also called power) in a resistor to its resistance and voltage across it. We then use it to answer the question. The detailed steps are as follows.
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