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Measurement and Instrumentation

Measurement and Instrumentation
A 10MHz CRO has

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

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Measurement and Instrumentation
Alternating current is measured by

Induction ammeter
Moving iron repulsion type voltmeter
Permanent magnet type ammeter
Electrostatic ammeter

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Measurement and Instrumentation
A permanent magnet moving coil ammeter has a coil resistance of 99ohm and Full Scale DeflectionFSD. current of 0.1mA. Shunt resistance is 1 ohm. Current through the meter at 0.5 F.S.D is

0.023mA
0.1mA
0.007mA
0.05mA

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Measurement and Instrumentation
An induction meter can handle current upto

10 A
100 A
60 A
30 A

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Measurement and Instrumentation
In a moving coil instrument, the deflecting torque is proportional to

Square of the current
Sine of the measurand
Squareroot of the current
Current

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Measurement and Instrumentation
The pressure coil of a wattmeter should be connected on the supply side of the current coil when

Load impedance is low
None of these
Supply voltage is low
Load impedance is high

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MORE MCQ ON Measurement and Instrumentation

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