Choose the correct alternatives (More than one may be correct).
Two NAND gates having open collector outputs are tied together as shown in below figure.
The logic function $Y,$ implemented by the circuit is,
There should be bubbled connection b/w two gates
$Y=((ABC)' + (DE)' )'$
NOTE: open gate works as NOR gate.
A Wired Connection can create both an AND gate and an OR gate , however it cannot implement a not gate .
but to know whether this intersection acts as AND gate or OR gate , we should know whether the intersection is at a HIGH or a LOW.
i think here they have assumed it to be at a HIGH , hence the answer will be Y=(ABC)' . (DE)' .