# Electronic instruments Mcqs

This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “ Electronic instruments ”. These questions are chosen from a collection of most authoritative and best reference books on Electrical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Electronic instruments comprehensively.

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NG

(n-1)G

G/(n-1)

G/n

Voltage

Frequency

Phase

All of above

NG

G/n

G/(n-1)

(n-1)G

## 4. Which of the following is likely to have the largest resistance ?

Voltmeter of range 10 V

Moving coil galvanometer

Ammeter of range 1 A

A copper wire of length 1 m and diameter 3 mm

Low

Infinite

Zero

High

G/50

G/49

49 G

50 G

## 7. The horizontal plates of a CRO are supplied with _____________ to observe the waveform of signal?

Sinusoidal wave

Cosine wave

Sawtooth wave

None of the above

Low

Infinite

Zero

High

11 O

9 O

100 O

9 O

## 10. If the negative potential on the control grid of CRT is increased, the intensity of spot _____________?

Is increased

Is decreased

Remains the same

None of the above

## 11. Two multimeters A and B have sensitivities of 10 kO/V and 30 kO/V respectively. Then ______________?

Multimeter A is more sensitive

Multimeter B is more sensitive

Both are equally sensitive

None of the above

## 12. What is the total resistance of a voltmeter on the 10 V range when the meter movement is rated for 50 µA of full-scale current ?

10 kO

20 kO

200 kO

None of the above

3 kO

KO

KO

6 kO

## 14. When an ammeter is inserted in the circuit, the circuit current will _____________?

Increase

Decrease

Remain the same

None of the above

## 15. A VTVM is never used to measure ______________?

Voltage

Current

Resistance

None of the above

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