Let V s =30V, R 1 =10?, R 2 =10? and R 3 =5? in the circuit of Figure 4-3a. Appl
ID: 1799308 • Letter: L
Question
Let Vs=30V, R1=10?, R2=10? and R3=5? in the circuit of Figure 4-3a. Apply source transformation to convert the circuit from Figure 4-3a to Figure 4-3b. What are the values of Vab and R, respectively?
A. Vab= 15 V ; R=10 Ohm B. Vab= 15 V ; R=5 Ohm C. Vab= 30 V ; R=5 Ohm D. Vab= 10 V ; R=13.33 Ohm(equations and details please)
Let Vs=30V, R1=10?, R2=10? and R3=5? in the circuit of Figure 4-3a. Apply source transformation to convert the circuit from Figure 4-3a to Figure 4-3b. What are the values of Vab and R, respectively? A. Vab= 15 V ; R=10 Ohm B. Vab= 15 V ; R=5 Ohm C. Vab= 30 V ; R=5 Ohm D. Vab= 10 V ; R=13.33 Ohm (equations and details please)
Explanation / Answer
Rab=R= [R1||R2] + R3 = 10 so A is correct.. apply KVL in the left loop when a-b is open: i = 30 / (10+10) = 1.5 Vab = 10x1.5 = 15
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