When the output of this circuit will be LOW and Why??
http://screencast.com/t/uNYXVGF8A @AravindG

Question

aravindg · Answer

what is A and B here? I mean the inputs in figure are A1,A2 ,A3 etc ...?

christos · Answer

I have no clue, all the info we got are what is being said in the QUIZ :/

christos · Answer

We have 4 options, a,b,c and d

aravindg · Answer

Can you identify the gates in the figure?

christos · Answer

4 XNOR and 1 AND

christos · Answer

Can you tell me when a XNOR Gate is HIGH?

aravindg · Answer

yep

A HIGH output (1) results if both of the inputs to the gate are the same. If one but not both inputs are HIGH (1), a LOW output (0) results.

aravindg · Answer

its logic eqn is AB+A'B'

christos · Answer

And when a XOR gate is HIGH ???? I am confusing XOR with XNOR

aravindg · Answer

nah its easy for ex or the equation is AB'+A'B

aravindg · Answer

ie when odd number of inputs are high we get high output for ex or

aravindg · Answer

if even inputs high then output =1 for ex nor thats all !

aravindg · Answer

A=B is the answer :)

aravindg · Answer

gt it ?

christos · Answer

It was C according to the solution, but you helped me understand why it was C thank you!!