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Measurement and Instrumentation

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

 Grid
  X-Y plates
 Accelerating anode
 Cathode

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Measurement and Instrumentation
The problem of Electrostatic coupling in a transformer is acute at

High load on the transformer
High frequencies
Power frequencies
Low frequencies

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Measurement and Instrumentation
Which of the quantity consists of unit as newton-second?

 velocity
 Speed
 Acceleration
 Impulse

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Measurement and Instrumentation
What are the SI units of mass, length and time respectively?

 kg, cm and s.
 g, cm and s.
 g, m and s.
 kg, m and s.

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

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

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Measurement and Instrumentation
Wagner earthing device is used to eliminate errors due to

Electrostatic coupling
Electromagnetic coupling
None of these
Both A and B

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