Peoples Physics Concepts

(Marvins-Underground-K-12) #1

13.2. Ohm’s Law http://www.ck12.org


a. What is its power?
b. What current must the battery produce to achieve this power?

Answers to Selected Problems


  1. a. 0.11 A b. 1.0 W c. 2. 5 × 1021 electrons d. 3636 W

  2. a. 5.4 mV b. 1. 4 × 10 −^8 A c. 7. 3 × 10 −^11 W, not a lot d. 2. 6 × 10 −^7 J

  3. a. 192Ωb. 0.42 W
    4..

  4. a. 12300 W b. 256 A

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