# made easy demo test # Q 53

Question

Comments

2 will be printing but quetion is looking somewhat confusing

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ur answer correct ...actually i am not understand how to works priority encoder in that question plx explain??

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In first priority encoder, both 1 & 2 are high, Hence priority is given to 2. Hence output of 1st encoder is 2.

In Mux, input is 1 and 0. Hence output is S₀'I₀  = 0. But 1 input is given to next priority encoder also.

Hence for next priority encoder inputs are again 1 & 2.

Hence priority is given to 2. And LED 2 will glow.

Answer 1

Priority should be given,ie if msb has higher priority than lsb.Assuming msb has higher priority if 3 and 2 has both one value output will be 3.I attempted this paper 1 wk paper this is how I did.