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2003 Course Electronic Measurement

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Total No. of Questions : 12] P1287 [Total No. of Pages : 3 [3864]-250 B.E. (Electronics) ELECTRONIC MEASUREMENT (2003 Course) (404209) Time : 3 Hours] [Max. Marks :100 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. 4) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. SECTION - I Q1) a) b) Q2) a) b) Q3) a) b) Q4) a) b) Write the principle of Digital LCR - Q meter. Draw the diagram and explain. Also state its applications and specifications. [10] Why the Vector Impedance Meter is used? Explain its operation with neat block diagram. [8] OR What is the distributive capacitance Cd? Explain distributive capacitance measurement in Q-meter circuit. How Cd and insertion resistance affect the Q of a coil? [10] Explain with the neat diagram Autoranging in DMM. What do you mean by Autozeroing in DMM. [8] State how the stability is achieved in Digital Frequency Meter using TCXO and OCXO. [8] Explain the High Frequency Measurement techniques in Digital Frequency counter. [8] OR Write brief notes on i) Regression Analysis. ii) Calibration Methodologies. [8] Calculate i) Arithmetic Mean ii) Deviation of each value from the mean. iii) Standard Deviation. iv) Variance P.T.O.

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