Final_review_2007-1

Final_review_2007-1 - Final Review Problem 1. Conceptual...

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Final Review Problem 1. Conceptual Problems a) In the circuit below, resistor R is increased. What happens to the following quantities? (Circle the appropriate answer.) V R1 R R2 R3 Power dissipated in R1 increases decreases stays the same Power dissipated in R2 increases decreases stays the same Power supplied by voltage source increases decreases stays the same Voltage across R3 increases decreases stays the same b) Find the power associated with each element in the circuit below. State whether each source is supplying or absorbing power. 10V 5A 2I 1 5V 1 10A I 1 - V 1 + Element Voltage Current Power Absorbed or delivered 5A source -60.0V 5.00A -0.300kW delivered Dependent source 5V 1 -50.0V 5.00A -0.250kW delivered Dependent source 2i 1 10.0V -10.0A 0.100kW absorbed 10V source 10.0V -5.00A -50.0W delivered 10A source -50.0V 10.0A 0.500kW absorbed
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c) For the circuit below, V A and V B are defined relative to the reference node as shown. Find the requested quantities. Switches A and B are open V A = 5.00V V B = _____5.00V Power dissipated in R 1 =__0W____ Switch A is closed, B is open V A = 5.00V V B = __5.00V Power dissipated in R 1 =____0W__ Switch A is open, B is closed V A = 5.00V V B = __2.50V Power dissipated in R 1 =_0.625W Switches A and B are closed V A = _3.33V V B = ___3.33V Power dissipated in R 1 =__1.11W 5 V 5V Switch A Switch B 10 Ω 10 Ω R 1 V A V B 10 Ω
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Problem 2. a) Use the node voltage method to find the total power developed in the circuit below. b) Use mesh current analysis to find the total power developed in the circuit. c) Find the power dissipated in the 10 Ω resistor.
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This note was uploaded on 08/27/2009 for the course EE 16200 taught by Professor Williamneal during the Fall '08 term at University of Texas.

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Final_review_2007-1 - Final Review Problem 1. Conceptual...

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