Explore topic-wise MCQs in Electrical Measurements.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Measurements knowledge and support exam preparation. Choose a topic below to get started.

1.

Maximum sensitivity occurs when?

A. <sup>R<sub>3</sub></sup> <sub>R<sub>4</sub></sub> = 1
B. <sup>R<sub>2</sub></sup> <sub>R<sub>4</sub></sub> = 1
C. <sup>R<sub>1</sub></sup> <sub>R<sub>2</sub></sub> = 1
D. <sup>R<sub>3</sub></sup> <sub>R<sub>2</sub></sub> = 1
Answer» B. <sup>R<sub>2</sub></sup> <sub>R<sub>4</sub></sub> = 1
Discussion
2.

Bridge sensitivity is defined as _________

A. (S_B= frac{ theta}{R} )
B. (S_B= frac{ theta}{ Delta R} )
C. (S_B= frac{1}{ frac{ Delta R}{R}} )
D. (S_B= frac{ theta}{ frac{ Delta R}{R}} )
Answer» E.
Discussion
3.

Sensitivity is expressed in _________

A. cm/A
B. m/mA
C. mm/ A
D. inch/nA
Answer» D. inch/nA
Discussion
4.

When the bridge is balanced, what is the current flowing through the galvanometer?

A. 0
B. depends on the ratio arms R<sub>1</sub> and R<sub>2</sub>
C. varies by a factor of 2
D. depends on the type of null detector used
Answer» B. depends on the ratio arms R<sub>1</sub> and R<sub>2</sub>
Discussion