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Predict/Calculate Four identical resistors are connected to a battery as shown in Figure 21-45. When the switch is open, the current through the battery is I0. (a) When the switch is closed, will the current through the battery increase, decrease, or stay the same? Explain. (b) Calculate the current that flows through the battery when the switch is closed. Give your answer in terms of I0.
Figure 21-45
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