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Measurement and Instrumentation

Measurement and Instrumentation
A moving iron instrument can be used for

None of the listed here
DC only
Both DC& AC
AC only

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Measurement and Instrumentation
The quantity 1/√(∈0 × μ0) in SI units has the

 none of these.
 both ‘a’ and ‘b’.
 dimension LT-1.
 speed of light.

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Measurement and Instrumentation
The given figure shows wein bridge connection for frequency measurement. C and R are variables and gang together. For balanced condition the expression for frequency is f = 1/2πCR when

 R1 = R2.
 R1 = 3R2.
 R1 = 2R2.
 R1 = R2/2.

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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
Current
Squareroot of the current

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Measurement and Instrumentation
The scale of hot wire ammeter is

 Absloute linear.
 Linear.
 Cramped.
  Non Linear.

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Measurement and Instrumentation
Two voltmeters have the same range 0-400V. The internal impedance are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600V be applied across them, the readings are

One of the meters out of the range and other 100V
360V and 240V
300V each
400V and 200V

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MORE MCQ ON Measurement and Instrumentation

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