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Measurement and Instrumentation

Measurement and Instrumentation
In a CRO which of following is not a part of electron gun?

 Cathode
 Accelerating anode
  X-Y plates
 Grid

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Measurement and Instrumentation
Which of following is a vector quantity?

 Flux density.
 Magnetic field intensity.
 Magnetic potential.
 Relative permeability.

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Measurement and Instrumentation
What is the standard unit for length ?

 Meter
 Kilometer
 Centimeter
 Inch

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Measurement and Instrumentation
The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. If this meter is to have full deflection at 5A, what is the value of the shunt resistance to be used?

2 Ohms
49.99 Ohms
1/49.99 ohms
1 Ohm

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Measurement and Instrumentation
The inductance of a certain moving iron ammeter is expressed as L = 2+5θ-θ2 µH. The control spring torque is 2 × 10-6 Nm/radian. Find the deflection in radians for a current of 2A.

 4
 1
 5
 2

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Measurement and Instrumentation
An ammeter is ______ instrument.

None of the listed here
An indicating
An integrating
A recording

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