T1[1] - 6 W of power? 5. For the circuit shown below, what...

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ENGR 205 Electric Circuits Test #1 9-24-10 Problems 1-6 are worth 10 points each. I 1. A 100 0 load connected to a 12 V source is dissipating 2. A 12 V battery is being charged by having a 0.5 A 1 W of power. What is the internal resistance of the current forced into its positive terminal. What is voltage source? the energy, injoules, being delivered to the battery in f?~ one hour? ,,, +=;z3 3. For the circuit shown, find the voltage gain, vdq, 4. For the circuit shown in problem 3, if vi = 27 V and if R=10 K1, k0.4, and Rl=RZ=0.6R R = 10 kn, what is the current flowing through Rl? - vc - - - 0.24 - 2 L1,44 b2 , i.S-4 ====== 6. For the circu~t shown in Problem 5, what are the currents flowing through element A and E if element D absorbs
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Unformatted text preview: 6 W of power? 5. For the circuit shown below, what are the voltages across elements A, B and C? Make sure to indicate voltage polarities on the diagram. 7. (14 points) (a) Find all node voltages of the circuit shown by using nodal analysis (6 points) (b) Calculate the power (released or absorbed?) bv the 12 V source. (14 points) (a) Find the current going through the 5 V source by applying loop anaIysis. (6 points) (b) Calculate the power (released or absorbed?) by the 5 resistor. 1 5 1 1 (r-? , b t = I!$ 3cc.z- loL'. - >< - - - (0 5 - 3 ( 5 i 3 - IU(cz-25) - <( 1 -lXq) = O . F- - (d', -k 90 c; = 5 - - - 1.2) CvI in1 in1 Lvd3 .- >olve (1) 2 (z) c, =. ( A , i, -. o, sn - - I ' ( b7 i - L I - ~ 3 = ! - g,;-= o , 5 A C-.-...
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T1[1] - 6 W of power? 5. For the circuit shown below, what...

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