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Measurement and Instrumentation

Measurement and Instrumentation
A 10MHz CRO has

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

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Measurement and Instrumentation
An current of is measured with a thermocouple, 5 A full scale meter. What is the meter reading?

 2 A.
  3 A.
 5 A.
 2+3√2 A.

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Measurement and Instrumentation
What is the approximate input impedance of a CRO?

 10 MΩ
 1 MΩ
 100 MΩ
 0

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Measurement and Instrumentation
The thermocouple instrument will measure

Current
Voltage
None of these
Flux

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Measurement and Instrumentation
A moving iron ammeter produces a full scale torque of 240 μNm with a deflection of 120° at a current of 10 A. The rate of change of self induction (μH/radian) of the instrument at full scale is

 12.0 μH/radian.
 4.8 μH/radian.
 2.0 μH/radian.
 114.6 μH/radian.

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Measurement and Instrumentation
For measurement of high direct voltage, one would use _____ voltmeter.

Hot wire
PMMC
Moving iron
Electrostatic

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