A latch can be constructed from an OR gate an AND gate and a

A latch can be constructed from an OR gate, an AND gate, and an inverter connected as follows:

What restriction must be placed on L and W so that Q will always equal P’?

Solution

Ans) L should be 1 L=1 to get Q=P\' always,that means L cannot be equal to zero

Reason if L=0,output of AND gate i.e Q is 0 irresppective of other input