Chapter 6 Problems and Answers

Part a find the current through each resistor using

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Part A Find the current through each resistor using the rules for series and parallel resistors. Express your answers using two significant figures separated by commas. ANSWER: = 1.1,0.26,0.81,0.26 Correct Part B Find the current through each resistor using Kirchhoff's rules. Express your answers using two significant figures separated by commas. ANSWER: = 1.1,0.26,0.81,0.26 Correct Problem 7.8
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An 12- battery is connected to three capacitors in series. The capacitors have the following capacitances: 4.6 , 10 , and 30 . Part A Find the voltage across the 30 capacitor. Express your answer using two significant figures. ANSWER: = 1.1 Correct Problem 7.9 The capacitor in an circuit ( = 140 , = 40 ) is initially uncharged. Part A Find the charge on the capacitor in the circuit one time constant after the circuit is connected to a 9.0- battery. Express your answer using two significant figures. ANSWER: = 230 Correct Part B Find the current in the circuit one time constant after the circuit is connected to a 9.0- battery. Express your answer using two significant figures. ANSWER: =24 Correct Score Summary: Your score on this assignment is 100%. You received 90 out of a possible total of 90 points. Problem 8.1
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Part A Find the current in the 2.0 resistor shown in the figure . Express your answer using two significant figures. ANSWER: = 1.3 Correct Part B Find the voltage across the 2.0 resistor shown in the figure. Express your answer using two significant figures. ANSWER: = 2.5 Correct Problem 8.2
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Consider the circuit shown in the figure , in which three lights, each with a resistance , are connected in series. The circuit also contains an open switch. Part A When the switch is closed, does the intensity of light 2 increase, decrease, or stay the same? ANSWER: The intensity of light 2 increases. The intensity of light 2 decreases. The intensity of light 2 stays the same. Correct Part B Explain. ANSWER: My Answer: Part C Do the intensities of lights 1 and 3 increase, decrease, or stay the same? ANSWER: The intensities of lights 1 and 3 increase. The intensities of lights 1 and 3 decrease. The intensities of lights 1 and 3 stay the same. Correct Part D Explain. ANSWER: My Answer:
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Problem 8.3 Part A A charged capacitor discharges through a resistor (call this discharging situation #1). If the value of the resistor is doubled and the identically charged capacitor is allowed to discharge again (situation #2), how do the time constants compare? ANSWER: Correct Problem 8.4
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Consider the circuit shown in the figure , in which three lights, each with a resistance , are connected in series. The circuit also contains an open switch. Part A When the switch is closed, does the intensity of light 2 increase, decrease, or stay the same? ANSWER: The intensity of light 2 increases. The intensity of light 2 decreases. The intensity of light 2 stays the same.
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  • Spring '12
  • Griffith
  • Physics, Current, Resistor, Electrical resistance, Series and parallel circuits

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