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Measurement and Instrumentation

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

100Hz
500Hz
50Hz
1kHz

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Measurement and Instrumentation
Purely mechanical instrument cannot be used for dynamic measurements because they have

All of these
 large time constant.
 higher response time.
 high inertia.

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Measurement and Instrumentation
The internal resistance of Weston standard cell is of order of

 100 ohm.
 10 ohm.
 1000 ohm.
 1 ohm.

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Measurement and Instrumentation
The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ?

 ±3.5%
 ± 1.5%
 ±0.5%
 ± 3.0%

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Measurement and Instrumentation
Basically potential meter is a device for

Comparing two currents
Comparing two voltages
Measuring a current
Measuring a voltage

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Measurement and Instrumentation
The rectifier instrument is not free from

Frequency error
Temperature error
All of the listed here
Wave shape error

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MORE MCQ ON Measurement and Instrumentation

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