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An ordinary flashlight is a very complicated instrument if we include the electrochemistry of the battery, the resistance of connections, and the thermodynamics of the

An ordinary flashlight is a very complicated instrument if we include the electrochemistry of the battery, the resistance of connections, and the thermodynamics of the bulb. What principles of engineering do we apply to simplify the device in order to analyze a flashlight circuit to determine the current in the battery when the device is operated?



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