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homework1 - Physics 300 Section 062 Problem Set 1 Homework...

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Unformatted text preview: Physics 300 Section 062 Problem Set # 1 Homework - Due Prior to Class September 5, 2006 1 Calculate the maximum current and maximum applied voltages for: (a) 330 Q, 1 Watt Resistor (b) 10 k9, 0.25 Watt Resistor. 2. 2L4 2 Find the current flowing through each resistor in Figure 1. Show all your work Assume R1=5§2,R2=3S2,R3=4Q,R4=2§2, and V=7.0 Volts. 3 Consider the simple voltage divide in figure 2. (a) Calculate the output voltage Vout. (b) Spontaneously you decide that you want to measure the voltage drop across R1 so you connect a voltmeter in parallel with R1. What will the output voltage Vout be with the voltmeter connected? Assume that the voltmeter has an effective resistance of 1M9. +0 Scoot-2. Kazan ’2 :lkfl + z Flgurf, Htp/bblfm 5 4 Consider the circuit diagram in figure 3. Using Kirchoff’s second law calculate: (a)The currents 11 and 12. (b)The voltage drop across the R3 resistor Assume R1=39, R2=2Qand R3=59 lOV 5 During the lab you have seen that you can use either the scope of the digital multi— meter/voltmeter to measure an electric potential. Given the circuit diagram in figure 4, calculate (and explain) the voltages recorded by both the scope and the voltmeter. For this problem you may assume that the scope and the voltmeter have infinite resistance ...
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