Basic of Electrical Engineering Mcqs

This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on “Basics of Electrical engineering”. 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 Electrical engineering comprehensively.

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2.
If P is the power of a star connected system then what will be power of an equivalent delta connected system?

P

3P

P/3

None of the above

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4.
The voltage induced in an inductor is represented as,

Product of its inductance and current through it.

Ratio of its inductance to the current through it.

Ratio of the current through it to its inductance.

Product of its inductance and rate of change of current through it.

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5.
Instantaneous power in inductor is proportional to the

Product of the instantaneous current and rate of change of current.

Square of instantaneous current.

Square of the rate of change of current.

Emperature of the inductor.

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7.
How many coulombs of charge flow through a circuit carrying a current of 10 A in 1 minute?

10

60

600

1200

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8.
The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be

R Ω

2R Ω

4R Ω

8R Ω

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9.
The resistivity of the conductor depends on

Area of the conductor.

Length of the conductor.

Type of material.

None of these.

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10.
If 1 A current flows in a circuit, the number of electrons flowing through this circuit is

0.625 × 1019

1.6 × 1019

1.6 × 10-19

0.625 × 10-19

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