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Circuit Theorems and Conversions - Engineering

Q1:

Find the Thevenin equivalent (VTH and RTH) between terminals A and B of the circuit given.

A 562 mV, 167 

B 5.62 V, 167 

C 5.62 V, 188 

D 562 mV, 188 

ANS:B - 5.62 V, 167 

From the circuit

VTH=VS*((R2+R3)/(R1+R2+R3))

VTH=5.62V.

RTH=R4+(R1||(R2+R3))

RTH=166.8(app. equal to 167 ohm)

So ans is option B.