01․ A flip flop is a _______ circuit.
As it saves its previous state...
02․ The simplified block diagram of a 10-bit A/D converter of dual slope integrator type is shown in figure. The 10-bit counter at the output is clocked by a 1 Mhz clock. Assuming negligible timing overhead for the control logic, the maximum frequency of the analog signal that can be converted using this A/D converted is approximately
.
.Maximum frequency of input in dual stop A/D converter is given as Tm = 2nTc. Where frequency of input and fc = 1/Tc = clock frequency.
[math] f_m = rac{f_c}{2^n} = rac{10^6}{1024} = 1 \; KHz \; (approx).[/math]
03․ The effect of stray magnetic field on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are
Effect of stray magnetic field is maximum when the operating field and stray fields are parallel.
04․ A digital voltmeter has a read out range from 0 to 999 counts, the resolution is
Resolution is the smallest change in the quantity being measured which will cause an observable change in output. In this case it is 1 mv.
05․ What is the difference between xor gate and exor gate.
Same name for one gate...
06․ One bit full adder has ________ inputs
1. First bit
2. Second bit
3. Carry In
07․ One bit full adder has ________ outputs.
1. Sum
2. Carry out
08․ If clock time period is 1ms, what is its frequency
f = 1/T
where f = frequency
T = time period
09․ What is mean by FPU
It performs the arithmetic operations on floating point numbers...
10․ Which of these circuits have higher gate complexity
1. Carry look ahead adder
2. Ripple carry adder
Carry look ahead adder has more number of gates than the ripple carry adder
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