PHYSICS 3B Chapter Notes - Chapter 24: Voltage Source, Internal Resistance, Electromotive Force
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Electric current needs battery or generator to produce current. These are called sources of electromotive force (emf) e. A battery is a nearly constant voltage source , but does have a small which reduces the actual voltage from the ideal emf (cid:8869) vab = This resistance behaves as though it were in series with the emf. 0. 5 r ee - iv r - in , 26. 2 resistors in series and parallel internal resistance, t r e tw / terminal voltage vab. A series connection has a single path from the battery . Through each circuit element in turn , and then back to the battery. The current through each resistor is the same. I 1-y. tn?-mvy-/ across the resistors the voltage drops f. R v -- ikea t rz e rz. But for an equivalent resistance we have. " rear will be greater than any individual ri. 4 beg for capacitors in pm is the sum of each vi.
