4) For the circuit shown below, find:a. the Thévenin's equivalent circuit between A and B. Use nodal analysis to find VTH, and use any oneof the applicable methods to find RTH.b. the Thévenin's equivalent circuit between B and C. Use mesh analysis to find VTH, and use any oneof the applicable methods to find RTH.+mu24 V2Ωww3 Ωwwww4Ω5 ΩW1Ω12 AB

Given, The circuit diagram,Part A The circuit diagram for the calculation of the Thevenin voltage will be, on applying nodal analysis to node V1 we get, V1-245+V1-V24=04V1-96+5V1-5V2=09V1-5V2=96..............1 on applying nodal analysis to node V2 we get, -2+V25+V2-V14=04V2+5V2-5V1=405V1-9V2=-40.................2 Now on solving both equations the value of both voltages will be, V1=19 VV2=15 V The value of the Thevenin voltage will be, VTh=V1-V2=19-15=4 VNow the Thevenin resistance for the circuit will be, For the calculation of Thevenin resistance, all voltage sources will be open-circuited, RTh=5+2+7∥4+1=10∥4+1=10×410+4+1=4014+1=40+1414=3.857 Ω Now the Thevenin equivalent of the circuit will be,Part B The circuit diagram will be, On applying KVL in loop L we get, 24-3I-4I-5I+2-2I=024-3I-4I-5I-10-2I=014I=14I=1 A The value of the Thevenin voltage will be, VTh=5I+2=51+2=15V Now for the calculation of Thevenin resistance, the circuit diagram will be, RTH=4+3+2∥5=9∥5=9×59+5=4514=3.214 Ω Hence the required Thevenin equivalent circuit diagram will be,