Could Someone Explain how to solve this question step by step to me? Thanks! The

Question

Could Someone Explain how to solve this question step by step to me? Thanks!

The equivalent circuit in Figure P 5.4-7 is obtained by replacing part of the original circuit by its Thevenin equivalent circuit. The values of the parameters of the Thevenin equivalent circuit are Voc = 15 V and Rt = 60 Ohm Determine the following: The values of Vs and Ra. (Four resistors in the original circuit have equal resistance, Ra.) The value of Rb required to cause i = 0.2 A. The value of Rb required to cause v = 12 V.

Explanation / Answer

(i)5Ra/2 =Rt

=>Ra=2*60/5=24 ohm

Voc=Ra*Vs/(5Ra/2)

Vs=2*Voc/5=2*15/5=6volt

B)Voc/Rt+Rb=0.2

=>15/60+Rb=0.2

=>Rb=15/0.2 -60 =15 ohm

c) Voc*Rb/Rt+Rb =12

Rb/60+Rb=12/15

Rb=48+12/15Rb

3/15 Rb=48

=>Rb=16*15= 240 ohm

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---