3.a. The following data are expected to follow a linear relationship…

Previous year question for Electronics Measurement & Instrumentation.

Question

3.a. The following data are expected to follow a linear relationship of the form $y = ax+b$. Obtain the best linear relation in accordance with the least square analysis and calculate the standard deviation.

[Table data provided: $X_i$: 0.9, 2.3, 3.3, 4.5, 5.6, 6.7; $Y_i$: 1.1, 1.6, 2.6, 3.2, 4.0, 5.0; $\sum X_i=23.4$, $\sum Y_i=17.5$, $\sum X_i Y_i=83.95$, $\sum X_i^2=114.62$]

b. Explain with neat diagram the working of AC voltmeter using rectifiers.

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