STUPIDSID
Answer any four:-
1 (a)
Define sensitivity of an analog instrument. For PMMC instrument with FSD=100 mA find sensitivity.
5 M
1 (b)
What is Meggar? Explain its working.
5 M
1 (c)
For ADC, define resolution. Give suitable example.
5 M
1 (d)
Explain the working principle of DC motor.
5 M
1 (e)
Explain the function of delay line in oscilloscope. What are the types of delay lines?
5 M
2 (a)
What is intensity modulation? For what purpose it is used? Can phase and frequency be measured using intensity modulation?
10 M
2 (b)
What is Q meter? Explain any one of the types of Q meter with the help of circuit diagram.
10 M
3 (a)
Draw and explain Kelvin's Bridge.
10 M
3 (b)
Explain the operating principle of 3-phase induction motor.
10 M
4 (a)
Draw and explain the block diagram of digital storage oscilloscope.
10 M
4 (b)
Explain R-2 R ladder technique of digital to analog converter.
10 M
5 (a)
Draw and explain any one of the types of electronic voltmeter. State its two advantages over analog voltmeter.
10 M
5 (b)
Explain digital phase meter using flip flop. Draw relevant waveforms at each point in a block diagram to illustrate.
10 M
6 (a)
Explain Schering bridge for measurement of capacitance. Derive the equation of unknown capacitance at balanced condition.
10 M
6 (b)
What is energy meter? Draw its constructional view and explain.
10 M
Write short notes on (any one):-
7 (a)
Variable reluctance stepper motor.
10 M
7 (b)
A.F. signal generator
10 M
7 (c)
Digital frequency meter.
10 M
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