If the power supplied by the 3 A current source in Fig. P2.131 is 31 W, calculate k. (A1-3 A, R1=5 S2, R2=2 , R3=72, R4=4 , R5=3 ) 50 V R11₁ A1 Figure P2.131 R2 R3 R4 kl₁ R5

Consider the circuit shown below. What is the value of voltage V2? ... V1 = 28 V R1 2 A R2 = 3 N I2 V2 R3 = 6 Q 4 A

Example For the test circuit below, calculate the following:VB1 VE1 VB2 VE2 IE2 OHI INPUT CC1 680nF R₁ 47k R₂ VB1 13k RCL 5k1 TR1 REI 2k0 VB2 TR2 RE2 1k8 Cc2 10uF IVE2 +12V DC R₂ 10k R4 51R OUTPUT

Home work: Q1: Two resistors must be selected so that the current in one is four times the current in the other. If their equivalent parallel resistance is 5kn, calculate R1 and R2. [Ans: 6.25k, 25k] 13

The power absorbed by R2 is to be determined by using Thevenin's Theorem. Determine the value of the Thevenin resistance that you would use in drawing the Thevenin Equivalent Circuit. Assume that R1 = 5 ohms. www R2 ww 50 a. 5.2 N b. 6.2 N c. 8.1 1 d. 7.3 0 e. 6.9 N f. 4.5 N MWM MWM

Which of the given equations is used to solve for the power dissipated in a closed circuit? A P= I2R B. P = RV C. P = V/I D. P= R2C

R₁ R₂ M 2 R3 Vs1 a + R6 + R5 Vs2 C M Q2. In the above circuit, Vs1 = 15 V, VS2 = 16 V, R1 = 2 Ohm, R2 = 9 Ohm, R3 = 6 Ohm, R4 = 5 Ohm, R5 = 2 Ohm, R6 = 5.5 Ohm. A. Formula a response question (Q2.1) Assume that the mesh currents for the circuit diagram are defined as i1, i2 and i3 (note the low-case "i" !) correspondingly. Using the notations in the circuit diagram and those of mesh currents, answer the following question. Enter the formula for the potential of the node 'b' with respect to the ground node indicated in the circuit diagram. Hint: pick the shortest path from the ground to the node and sum up the potential changes along the path. Note that in your formula, you can use the given circuit parameters and mesh current variables only. Remember that the answer is case sensitive! RA 4 3

Find Vs in the circuit in Fig. P2.38, if VBE = 18 V. Vs A 1+ E R₁ = 3kQ www VBE B R₂ = 2KQ C I R₁ = 1kQ Figure 1 +12 V D

G1-2 G2-4 G3-2 G4-7 G5-2 G6-1 G7-2

Find the equivalent resistance on the circuit given below. Note: Value of R4 is equal to 388 ohms. R1 R3 R10 R8 4 R9 1 1000Q 3502 3002 1502 5002 6 Vs R2 R4 R5 R6 R7 2502 2002 15002 4002 24V Round your answer to 2 decimal places.