STUPIDSID
Answer any one question from Q1 and Q2
1 (a)
Compare performance of half wave rectifier and full wave rectifier with respect to following parameters:
1) IDC
2) IRMS
3) Rectifier efficiency
4) Ripple factor
5) PIV
6) TUF
1) IDC
2) IRMS
3) Rectifier efficiency
4) Ripple factor
5) PIV
6) TUF
6 M
1 (b)
Explain how transistor can be used as an amplifier with the help of D.C. load line approach.
6 M
2 (a)
Explain the operation of n-channel enhancement type MOSFET with its characteristics.
6 M
2 (b)
Determine the O/P waveform for the circuit shown in fig.
6 M
Answer any one question from Q3 and Q4
3 (a)
Explain the working of inverting summing amplifier with two inputs along with its wave foRMS.
6 M
3 (b)
State and prove the de Morgan's theorem. Simplify the following Boolean expression: AB+AB
6 M
4 (a)
With the help of block diagram of IC555 explain its operation in Astable mode.
6 M
4 (b)
Compare Microprocessor and micro-controller.
6 M
Answer any one question from Q5 and Q6
5 (a)
Explain the operation of SCR with the help of V-I characteristics.
7 M
5 (b)
Explain the selection criteria of a Transducer.
6 M
6 (a)
Define 'Dark current'. Draw and explain the characteristics of photo transistor.
6 M
6 (b)
Explain the construction of DIAC and draw its characteristics.
7 M
Answer any one question from Q7 and Q8
7 (a)
Draw and explain the electromagnetic or IEEE frequency spectrum.
7 M
7 (b)
Compare AM and FM.
6 M
8 (a)
Draw and explain the block diagram of GSM.
7 M
8 (b)
A carrier of 10 V peak and frequency 100 KHz is amplitude modulated by a sine wave of 4V peak and frequency 1000 Hz. Determine the modulation index for the modulated wave and draw the frequency spectrum for AM wave.
6 M
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