1
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
The Dirac delta Function $$\delta \left( t \right)$$ is defined as
A
$$\delta \left( t \right) = \left\{ {\matrix{ 1 & {t = 0} \cr {0\,{\,^,}} & {otherwise} \cr } } \right.$$
B
$$\delta \left( t \right) = \left\{ {\matrix{ \infty & {t = 0} \cr {0\,\,,} & {otherwise} \cr } } \right.$$
C
$$\delta \left( t \right) = \left\{ {\matrix{ 1 & {t = 0} \cr {0\,\,,} & {otherwise} \cr } } \right.$$ and $$\int\limits_{ - \infty }^\infty {\delta \left( t \right)\,dt = 1} $$
D
$$\delta \left( t \right) = \left\{ {\matrix{ \infty & {t = 0} \cr {0\,\,,} & {otherwise} \cr } } \right.$$ and $$\int\limits_{ - \infty }^\infty {\delta \left( t \right)\,dt = 1} $$
2
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
What memory address range is NOT represented by chip 1 and chip 2 in figure? A0 to A15 in this figure are the address lines and CS means Chip Select. GATE ECE 2005 Microprocessors - Pin Details of 8085 and Interfacing with 8085 Question 12 English
A
0100H - 02FFH
B
1500H - 16FFH
C
F900H - FAFFH
D
F800H – F9FFH
3
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6

Consider an 8085 microprocessor system


The following program starts at locaton 0100H.
LXI SP, 00FF
LXI H, 0107
MVI A, 20H
SUB M

The contents of accumulator wnen the program counter reaches 0109H is

A
20H
B
02H
C
00H
D
FFH.
4
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6

Consider an 8085 microprocessor system


If in addition following code exists from 0109H onwards ORI 40H, ADD M What will be the result in the accumulator after the last instruction is executed
A
40H
B
20H
C
60H
D
42H
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