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Measurement and Instrumentation

Measurement and Instrumentation
For the AC bridge circuit shown in figure at balance the value of Rd will be

 (Rb/Rc).Ra.
 (Ra/Rc).Rb.
 (Rc/Ra).Rb.
 (Rc/Rb).Ra.

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Measurement and Instrumentation
On a simple ohmmeter, the 0 Ω mark is _______ of the scale.

None of the listed here
In the middle
Far left
Far right

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Measurement and Instrumentation
The EMF of Weston standard cell is measured using

Digital Volt meter
Potentiometer
Moving-coil meter
Moving- iron meter

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Measurement and Instrumentation
Direct method is used to measure

Pressure
Voltage
Temperature
Length

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Measurement and Instrumentation
If two 300V full scale voltmeters V1 and V2 having sensitivities of 100 kOhm/V and 150 kOhm/V are connected in series to measure 500V then

 V1 = 0V and V2 = 0V.
 V1 = 200V and V2 = 300V.
 V1 = 300V and V2 = 200V.
 V1 = 250V and V2 = 250V.

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Measurement and Instrumentation
Swamping resistance is used to compensate

 error due to strong magnetic field.
 both A and B.
 none of these.
 error due to temperature true variations.

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