# Q2 - Physics 7B Quiz 2 Grade Name ID DL Section I certify...

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Physics 7B Quiz 2 Grade: Name: _______________________ ID: _______________________ DL Section: I certify by my signature that I will abide by the code of academic conduct of the University of California. Signature No books or notes. Calculators OK. Show all your work below. Answers alone do not receive credit! Consider the circuit above for each of the following questions: 1. (1.5 pts) What is the voltage difference between points A and B? 2. (1.5 pts) How large is the battery current I b ? 3. (1.5 pts) How much power is dissipated by the 4 Ω resistor? transport equation for electric circuits: Δ V = E - IR power dissipated by resistor: P = I 2 R

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2 Question 1 Q – 1.5 points – Correct: ! V = +or- 6 volts (either sign was ok, depending on the order points A and B were taken in) W – 0.8 points – Incorrect: Used ! V = ! - I*R, but did so in generally a way that a.) neglected that to use the current calculated in part 2 that the equivalent resistance, R eq , had to be used, b.) did not treat
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## This note was uploaded on 01/05/2011 for the course PHY 7B PHY7B taught by Professor Cebra during the Spring '10 term at UC Davis.

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Q2 - Physics 7B Quiz 2 Grade Name ID DL Section I certify...

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