Kerala PSC Previous Years Question Paper & Answer
Page:4
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Electrical Engineer' And exam conducted in the year 2023. And Question paper code was '70/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
C:-Self-induced EMF
D:-Back EMF
Correct Answer:- Option-A
Question16:-Which among the following is true about Faraday's law of Electro-
magnetic induction?
A:-An EMF is induced in a conductor when the flux linked with it is constant
B:-An EMF is induced in a conductor when it moves parallel to the magnetic
field
C:-An EMF is induced in a conductor when no flux is linked with it
D:-An EMF is induced in a conductor when the flux linked with it is varying
Correct Answer:- Option-D
Question17:-A 5 cm long coil has 10 turns and carries a current of 1.5 A. The
magnetising force of the coil is
A:-150 AT/m
B:-600 AT/m
C:-450 AT/m
D:-300 AT/m
Correct Answer:- Option-D
Question18:-Relative permeability of free space is
A:-1
B:-10
C:-100
0-೧೧-7
Correct Answer:- Option-A
Question19:-Calculate the emf when a coil of 100 turns is subjected to a flux rate of
0.3 tesla/sec.
A:-3 V
B:-30 V
C:--30 V
D:--300 V
Correct Answer:- Option-C
Question20:-A 500 turns solenoid develops an average induced voltage of 60V.
Over what time interval must a flux change of 0.06 Wb occur to produce such a
voltage
A:-0.01 s
8:-0.1 5
:-0.5 5
0:-5 5