Energy & power practice problems
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Read the energy & power class notes.
For some component in a circuit, the voltage is measured to be 48 V and the current is measured to be 0.88 A, with polarity and current direction as shown in the figure.
Is the device delivering electrical powering or dissipating it? What is the power level?
How long will it take to deliver or dissipate 6.6 W·hr?
