A Best Way To Crack Gorenment Job Exams

Electrical Engineering Objective Questions { Basic Concept of Electricity }



15. In mesh analysis of a network, all the mesh currents must necessarily be either clock-wise or anticlock-wise
A.TRUE
B.False
C.Both
D.none

16. Which of the following stays the same in all parts of a series circuit?
A. voltage
B. power
C. resistance
D. current

17. The resistance of the windings of a generator is known as
A. generated resistance
B. field resistance
C. internal resistance
D. terminal resistance

18. When resistance is added to a circuit having a constant potential, the current is
A. reduced in the same proportion
B. increased in the same proportion
C. unaltered
D. made fluctuating

19. Ampere is the current which, if main tamed in two straight parallel conductors of infinite length, of neglible circular cross-section, and placed 1 m apart in a vacuum, would produce between these conductors a force of
A. 2 x 10-7 N/m length
B. 1 N/m length
C. 1 x 10-7 N/m length
D. 2 x 107 N/m length

20. Ohm's law is applicable to
A. semi-conductors
B. vacuum tubes
C. electrolytes
D. none of these

21. A wire of length / and of circular cross section of radius r has a resistance of Rohms. Another wire of same material and of cross-sectional radius 2r will have the same resistance R if the length is
A.21
B. ?
C.c) 4 I
D.12

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