# By placing an inverter between both input of an S. R. flip-flop, it becomes

1.  J- K flip-flop

2.  D- flip-flop

3.  T- flip-flop

4.  Master slave JK flip-flop

4

D- flip-flop

Explanation :
No Explanation available for this question

# Positive logic in a logic circuit is one in which

1.  logic 0 and 1 are represented by 0 and positive voltages respectively

2.  logic 0 and 1 are represented by negative and positive voltages respectively

3.  logic 0 voltage level is higher than logic 1 voltage level

4.  logic 0 voltage level is lower than logic 1 voltage level

4

logic 0 voltage level is lower than logic 1 voltage level

Explanation :
No Explanation available for this question

# The address bus of inter 8085 is 16 bit wide and hence the memory which can be assessed by this address bus is

1.  2K bytes

2.  4K bytes

3.  16 K bytes

4.  69 K bytes

4

69 K bytes

Explanation :
No Explanation available for this question

# As compared to MOS memories, bipolar memories have

1.  slower success time but are cheaper

2.  slower access time and are costly

3.  faster access time and are cheaper

4.  faster access time and are costly

4

faster access time and are costly

Explanation :
No Explanation available for this question

# The closed-loop transfer function of a control system is given by For a unit step input the output is

1.  (a)-3e-2t + 4e-1 –1

2.  -3e-2t + 4e-1 + 1

3.  Zero

4.  Infinity

4

(a)-3e-2t + 4e-1 –1

Explanation :
No Explanation available for this question

# Among the following, the slowest ADC(Analog-to-digital converter) is

1.  parallel-comparator (i.e. flash) type

2.  successive approximation type

3.  integrating type

4.  counting type

4

successive approximation type

Explanation :
No Explanation available for this question

# The output of a logic gate “1” when all its input are at logic “0”, the gate is either

1.  a NAND or an EX-OR gate

2.  a NOR or an EX-OR gate

3.  an AND or an EX-NOR gate

4.  a NOR or an EX-NOR gate

4

a NOR or an EX-NOR gate

Explanation :
No Explanation available for this question

# If  then which one of the following is true

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

1.  infinity

2.   zero

3.  one

4.  none of these

4

none of these

Explanation :
No Explanation available for this question

# Which of the following signal is an energy signal

1.  A sin t, -∞ < t < ∞

2.  u(t)

3.

4.  t U(t)

4