PHYS 230 PRACTICE EXAM Chapter 2 1.What is electric charge? What are the units of electric charge? What is electric current? What are the units of electric current? Questions 2, 3, and 4 refer to the following circuit: 2.What is the current through R1? 3.What is the voltage across R2? 4.What is the current through the battery? 5.What is the total resistance of two 60 W light bulbs in connected in parallel (assume 120 VRMS)?
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