1
GATE ECE 2012
MCQ (Single Correct Answer)
+1
-0.3
Consider the given circuit. In this circuit, the race around

GATE ECE 2012 Digital Circuits - Sequential Circuits Question 61 English
A
does not occur
B
occurs when CLK = 0
C
occurs when CLK = 1 and A = B = 1
D
occurs when CLK = 1 and A = B = 0
2
GATE ECE 2012
MCQ (Single Correct Answer)
+1
-0.3
The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B. The number of combinations for which the output is logic 1, is
A
4
B
6
C
8
D
10
3
GATE ECE 2012
MCQ (Single Correct Answer)
+2
-0.6
The state transition diagram for the logic circuit shown is GATE ECE 2012 Digital Circuits - Sequential Circuits Question 42 English
A
GATE ECE 2012 Digital Circuits - Sequential Circuits Question 42 English Option 1
B
GATE ECE 2012 Digital Circuits - Sequential Circuits Question 42 English Option 2
C
GATE ECE 2012 Digital Circuits - Sequential Circuits Question 42 English Option 3
D
GATE ECE 2012 Digital Circuits - Sequential Circuits Question 42 English Option 4
4
GATE ECE 2012
MCQ (Single Correct Answer)
+1
-0.3
A plane wave propagating in air with $$\vec E = \left( {8{{\widehat a}_x} + 6{{\widehat a}_y} + 5{{\widehat a}_z}} \right){\mkern 1mu} {\mkern 1mu} {e^{j\left( {\omega t + 3x - 4y} \right)}}{\mkern 1mu} {\mkern 1mu} V/m$$ is incident on a perfectly conducting slab positioned at $$x \le 0$$. The $$\overrightarrow E $$ field of the reflected wave is
A
$$\left( { - 8{{\widehat a}_x} - 6{{\widehat a}_y} - 5{{\widehat a}_z}} \right){\mkern 1mu} {e^{j\left( {\omega t + 3x + 4y} \right)}}{\mkern 1mu} {\mkern 1mu} V/m$$
B
$$\left( { - 8{{\widehat a}_x} + 6{{\widehat a}_y} - 5{{\widehat a}_z}} \right){\mkern 1mu} {e^{j\left( {\omega t + 3x + 4y} \right)}}{\mkern 1mu} {\mkern 1mu} V/m$$
C
$$\left( { - 8{{\widehat a}_x} - 6{{\widehat a}_y} - 5{{\widehat a}_z}} \right){\mkern 1mu} {e^{j\left( {\omega t - 3x - 4y} \right)}}{\mkern 1mu} {\mkern 1mu} V/m$$
D
$$\left( { - 8{{\widehat a}_x} + 6{{\widehat a}_y} - 5{{\widehat a}_z}} \right){\mkern 1mu} {e^{j\left( {\omega t - 3x - 4y} \right)}}{\mkern 1mu} {\mkern 1mu} V/m$$