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Measurement and Instrumentation

Measurement and Instrumentation
A 10MHz CRO has

10MHz supply frequency
5MHz sweep
10MHz vertical oscillator
10MHz horizontal oscillator

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Measurement and Instrumentation
A high frequency AC signal is applied to a PMMC instrument. The RMS value of the AC signal is 2V, the reading of the instrument is

 Zero.
 2√2V.
 2V.
 √2V.

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Measurement and Instrumentation
Unit of deflection sensitivity of a CRO is

 V / mm.
 meter / volt.
 mm per mV.
 mm / V.

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Measurement and Instrumentation
A slide wire potentiometer has 10 wires of 1 m each. With the help of a standard voltage source of 1.018 V it is standardised by keeping the jockey at 101.8 cm. If the resistance of the potentiometer wires is 1000 ohm, then the value of the working current will be

 100 mA.
 1mA.
 10 mA.
 0.5 mA.

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Measurement and Instrumentation
The chemical effect of current is used in

C. ammeter
None of these
C. energy meter
C. ammeter hour meter

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Measurement and Instrumentation
A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read

2.5 A
None of the listed here
5 A
0 A

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