If the battery in (Figure 1) were ideal, lightbulb A would not dim when the switch is closed. However, real batteries have a small internal resistance, which we can model as the 0.3 Ω resistors shown inside the battery. In this case, the brightness of bulb A changes when the switch is closed. Assume ε = 2.0 V
Part A. How much power does bulb A dissipate when the switch is open? Express your answer with the appropriate units
Part B. How much power does bulb A dissipate when the switch is closed? Express your answer with the appropriate units
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