Question

When using NAND gate instead of NOR gate in SR flip-flop, Q and Q’ both become one when?

S and R both are 1
S and R both are 0
S=1 and R=0
S=0 and R=1
I don't feel like answering this question.

Answer 1

S and R both are 0

Step-by-step explanation:

A 0 at the input of a NAND gate causes its output to be 1. There is no other logic between the output NAND gate and the S or R inputs, so both inputs 0 will make both outputs 1.