In Fig. 27-55a, resistor 3 is a variable resistor and the ideal battery has emf 12 V
Chapter 27, 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 is set by R3s 20 . The curve has an asymptote of 2.0 mA as R3 :. What are (a) resistance R1 and (b) resistance R2? R2 R3R1i (mA)6420R3 ()R3s(a) (b)+Figure 27-55 46.
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