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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 below.

A 4.16 V, 120 

B 41.6 V, 120 

C 4.16 V, 70 

D 41.67 V, 70 

ANS:D - 41.67 V, 70 

By Voltage dider rule(vth) = 100 * 120/(60 + 100 + 120) = 41.66.
And rth = (100 + 68)/(100 + 68 + 120) = 70.