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Circuit (Network) analysis is the process of finding the voltages across, and the currents through, every component in the network. Consider using in conjunction with tags for the particular analysis technique(s) in question: "nodal-analysis", "mesh-analysis", "superposition", etc.
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Why doesn't the fan work when the LED is connected in series with it?
In this picture, I have connected a fan and an LED to a battery. The LED works when I switch the circuit ON but the fan doesn't. If I connect the fan directly, things work.
Fan not working
Fan works
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