GATE ECE 2008 | GATE ECE Year Wise Previous Years Questions

GATE ECE 2008

MCQ (Single Correct Answer)

-0.6

Which of the follwing Boolean expression correctly represents the relation between P, Q, R and M₁?

GATE ECE 2008 Digital Circuits - Logic Gates Question 12 English

GATE ECE 2008 Digital Circuits - Logic Gates Question 12 English

M₁=(P OR Q) XOR R

M₁=(P AND Q) XOR R

M₁=(P NOR Q) XOR R

M₁=(P XOR Q) XOR R

GATE ECE 2008

MCQ (Single Correct Answer)

-0.6

For the circuit shown in the following figure $${I_0}$$ - $${I_3}$$ are inputs to the 4:1 multiplexer R(MSB) and S are control bits. tHE OUTPUT Zcan be represented by GATE ECE 2008 Digital Circuits - Combinational Circuits Question 30 English

GATE ECE 2008 Digital Circuits - Combinational Circuits Question 30 English

PQ+P$$\overline {Q\,} S + \,\overline {Q\,} \overline R \,\overline S $$

$$P\,\overline {Q\,} + PQ\,\overline R \, + \,\overline R \,\overline {Q\,} \,\overline S $$

$$P\,\overline {Q\,} \overline R + \overline P \,QR + PQRS + \overline {Q\,} \overline R \,\overline S $$

$$PQ\,\overline R + PQR\,\overline S + P\overline {Q\,} \overline R \,S + \overline {Q\,} \overline R \,\overline S $$

GATE ECE 2008

MCQ (Single Correct Answer)

-0.6

One end of loss-less transmission line having the characteristic impedance of 75 $$\Omega $$ and length of 1 cm is short-ciruited. At 3 GHz, the input impedance at the other end of the transmission line is

Resistive

Capacitive

Inductive

GATE ECE 2008

MCQ (Single Correct Answer)

-0.6

At 20 GHz, the gain of a parabolic dish antenna of 1 meter diameter and 70% efficiency is

15 dB

25 dB

35 dB

45 dB

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