In Fig. 27-32a, both batteries have emf # ! 1.20 V and the
Chapter , Problem 14(choose chapter or problem)
In Fig. 27-32a, both batteries have emf # ! 1.20 V and the external resistance R is a variable resistor. Figure 27-32b gives the electric potentials V between the terminals of each battery as functions of R: Curve 1 corresponds to battery 1, and curve 2 corresponds to battery 2.The horizontal scale is set by Rs ! 0.20 0.What is the internal resistance of (a) battery 1 and (b) battery 2? 796 CHAPTER 27 CIRCUITS R 1 2 1 2 Rs R () 0.5 0 0.3 V (V) (a) (b) + + Figure 27-32 14.
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