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12. You are given two batteries of emf values ₁ and ₂ and internal resistances r₁ and r2. They may be connected either i
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- 12 You Are Given Two Batteries Of Emf Values And And Internal Resistances R And R2 They May Be Connected Either I 1 (36.75 KiB) Viewed 10 times
12. You are given two batteries of emf values ₁ and ₂ and internal resistances r₁ and r2. They may be connected either in (a) parallel or (b) series and are used to establish a cur- rent in a resistor R, as shown in Fig. 31-30. Derive expressions for the current in R for both methods of con- nection. (b) (a) 81 71 www 71 82 www 72 www R 820 H+MWWW www ww 12 N FIGURE 31-30. Exercise 12.