In Fig. 27-55a, resistor 3 is a variable resistor and the
Chapter , Problem 46(choose chapter or problem)
In Fig. 27-55a, resistor 3 is a variable resistor and the ideal battery has emf # ! 12 V. Figure 27-55b gives the current ithrough the battery as a function of R3. The horizontal scale isset by R3s ! 20 0. The curve has an asymptote of 2.0 mA as R3 :,. What are (a) resistance R1 and (b) resistance R2?R3R1i (mA)6420R3 ()R3s(a) (b)+Figure 27-55 46.
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