20090420 Physics 2B Practice Test 2

# 20090420 Physics 2B Practice Test 2 - Physics 2B Practice...

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Physics 2B Practice Test 2 Conceptual Part Name: 1. Batteries convert chemical energy into electrical energy. a. True b. False 2. Generators convert mechanical energy into electrical energy. a. True b. False 3. Current remains a constant vale as it passes through a series of resistors. a. True b. False 4. The potential difference across any two resistors in series is different if they have different resistances. a. True b. False 5. The potential difference across any two parallel resistors , of different resistance, is the same a. True b. False 6. The current through any two parallel resistors, of different resistance, is the same a. True b. False 7. The sum of the currents entering any junction must equal the sum of the currents leaving that junction a. True b. False 8. The sum of the potential differences across all the elements around any closed loop must be zero. a. True b. False

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