Question: Take = 12 V and R 1 = 270 in Fig. 25.4. (a) Whats the resistance R 2 if theres 4.5 V across

Take ε = 12 V and R1 = 270 Ω in Fig. 25.4. (a) What’s the resistance R2 if there’s 4.5 V across it? (b) What will be the power dissipation in R2?

(a) Current from R1 can't go anywhere but through R2 ... R1 ww R2 so current / through R1 and R2 is the same. (b)

(a) Current from R1 can't go anywhere but through R2 ... R1 ww R2 so current / through R1 and R2 is the same. (b)

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