Discussion :: SeriesParallel Circuits  General Questions (Q.No.13)
13. 
If the load in the given circuit is open, what is the unloaded output voltage? 

Answer: Option C Explanation: No answer description available for this question.

Divya said: (Sep 15, 2011)  
Unloaded o/p volt. means rl=0 Therefore r1&r2 are in series i=v/r=20/(2k+8k)=2mA v across r2 is v=ir=2m*8k=16. 
Manoj Bhat said: (Apr 24, 2015)  
Find the current in the circuit: Add R1 & R2 which are in series. R1+R2 = 10 kohm. Current, I = 2 m amps. Since vout is taken, V = IR1. V = 2m*2k. V = 4V. Therefore Vout = 204 = 16V. 
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