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Resistors in Series

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Explanations 1

Consider 2 resistors in series, as shown in Figure 1. Imagine that there is a current flowing through the wire. The current at any point along the wire must be the same. Thus, w…
By Daniel Whatley

Problems 1

If the voltage difference across the whole circuit is 6V, R1 is 2ohms, R2 is 5ohms, R3 is unknown and the current is 0.5A then what must R3 to make the rest of the facts true?