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Measurement and Instrumentation

Measurement and Instrumentation
A 10MHz CRO has

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

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Measurement and Instrumentation
The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be

 248 V.
 252 V.
 250 V.
 260 V.

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Measurement and Instrumentation
A moving iron ammeter may be compensated for frequency errors by

A shunt resistance
A series inductance
Shunt capacitance
Series resistance

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Measurement and Instrumentation
A galvanometer with a full scale current of 10 mA has a resistance of 1000 Ω. The multiplying power (the ratio of measured current to galvanometer current) of 100 Ω shunt with this galvanometer is

 10.
 110.
 100.
 11.

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Measurement and Instrumentation
Ryall crest voltmeter is used for measurement of

AC voltage of any form
High AC voltage
Low frequency voltage
High DC voltage

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Measurement and Instrumentation
A 1 mA meter is to be converted to 1 A ammeter. The meter resistance is 100 Ω. The value of shunt resistance

 1000 Ω.
 0.001 Ω.
 100 Ω.
 0.1001 Ω.

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MORE MCQ ON Measurement and Instrumentation

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