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AE-JE Foundation EE : Electrical & Electronic Measurements Quiz-1

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Question 1

Which of the following instrument will be used to measure a small current of very high frequency?

Question 2

Consider the following statements:
The causes of error in the measurement of temperature using a thermistor are
1) Self heating
2) Poor sensitivity
3) Non-linear characteristics
Which of these statements are correct?

Question 3

A 1 mA galvanometer with internal resistance of 50 ohm is to be converted to measure 5 A (full-scale). What is the value of the shunt resistance required for this conversion?

Question 4

Electrostatic voltmeters are particularly suitable for measuring high voltage because the construction is simplified due to

Question 5

A galvanometer has a current sensitivity of 1 μA/mm and a critical damping resistance of 1kΩ. The voltage sensitivity and the megaohm sensitivity respectively are

Question 6

To minimize voltmeter loading

Question 7

Volt-box is basically a device used for

Question 8

When a steady current is passed through a ballistic galvanometer, then the deflection will be

Question 9

Why is damping of a ballistic galvanometer kept small?

Question 10

Match List-I (Property) with List-II (Type of the Instrument) and select the correct answer using the code given below the lists:
List-I
A) Linear scale
B) True r.m.s. up to RF range
C) r.m.s. only for sinusoidal input
D) Reads r.m.s. value square law scale
List-II
1) Thermocouple type
2) Rectifier type
3) Moving iron type
4) Permanent magnet moving coil type

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