set a round 2

The resolution of an n bit DAC with a maximum input of 5V is 5mV .The value of n is..?

• 8

• 9

• 10

• 11

Decimal number 10 is equal to binary number?

• 1110

• 1001

• 1010

• 1000

For a mod 64 parallel counter we need?

• 6 flip flops

• 6 flip flops and 4 AND gate

• none of the above

• 6 flip flops and 2 AND gate

For attenuation of high frequencies use

• Series Capacitance

• Inductance

• Resistance

• Shunt Capacitance

Which one is a casual system?

• y(n)=3x[n]-2x[n-1]

• y(n)=3x[n]+2x[n+1]

• y(n)=3x[n+1]+2x[n-1]

• y(n)=3x[n+1]2x[n-1]4x[k]

The fourier series of an odd periodic function contains?

• odd hormonic only

• even hormonic only

• cosine hormonic only

• sine hormonic only

The function g1(t) and g2(t) with correlation of 6 has average power of 4 and 5 respectively.The power of g1(t)+g2(t) is?

• 21

• 9

• 15

• 4

The signal defined by the equation f(t)=0 for t<0 f(t)=E for 0<=t<=a and f(t)=0 for t>a is?

• a stop function

• a pulse function

• a shifted stop function caiginating at t=a

• none of the above

A signal m(t) multiplied by a sinusoidal waveform of frequency fc such that v(t)=m(t) cos2pfct if fourier transform of v(t) coil be

• 0.5M (f+fc)

• 0.5M(f-fc)

• 0.5M(f+fc)+0.5M(f-fc)

• 0.5M(f-fc)+0.5M(f-fc)

Inverse fourier transform of sgn(w) is

• j/pi(t)

• 1

• u(t)

• 2/jt