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Measurement and Instrumentation

Measurement and Instrumentation
The measured value of a resistance is 10.25 ohm, whereas its value of 10.22 ohm. What is absolute error of the measurement?

  0.03 ohm.
 15.36 ohm.
 10.26 ohm.
 0.01 ohm.

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Measurement and Instrumentation
A Lissajous pattern on an oscilloscope has 5 horinzontal tangencies and 2 vertical tangencies. The frequency of horizontal input is 100 Hz. The frequency of the vertical will be

 625 Hz.
 400 Hz.
 250 Hz.
 500 Hz.

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Measurement and Instrumentation
Direct method is used to measure

Temperature
Length
Voltage
Pressure

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Measurement and Instrumentation
With a sweep time 10ms across the screen the approx. horizontal sawtooth frequency will be

500Hz
1kHz
100Hz
50Hz

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Measurement and Instrumentation
A PMMC voltmeter is connected across a series combination of a DC voltage source V1 = 2 V and an AC voltage source V2 = 3sin4t, the voltmeters reads

 2 V.
 0 V.
 (2 + √3/2)V.
 5 V.

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Measurement and Instrumentation
Magnetic deflection is inversely proportional to

 (Voltage)1.5.
 (Voltage)-0.5.
 (Voltage)2.
 Voltage.

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