Kerala PSC Previous Years Question Paper & Answer
Page:6
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Tradesman (Electronics andInstrumentation' And exam conducted in the year 2023. And Question paper code was '077/2023'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. 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.
077/23
25.
26.
27.
28.
29.
30.
For making P type semiconductor, which material should not be added in extrinsic
semiconductor material ?
A) Galium B) Boron
C) Arsenic D) Indium
The difference of voltage across two points in a circuit is called
A) Electro motive force
B)
C) Potential difference
D)
Electric current
None of these
The ratio of flux created in that material to the flux created in air is
A) Magnetic field strength
B) Permeability
C) Flux density
D) Conductivity
Electrical property of an electrical circuit or device to oppose any change in
magnitude of current flow in a circuit is called
A) Resistance B) Inductance
C) Capacitance D) Impedance
An inductor stores an energy in the magnetic field created by the current. The energy
is expressed as
A) W= 1/2 LI? B) W=1/3 LI?
C) W=1/4 LI? ഉ) ഡല
Which of the following statement is/are correct about resistance offered by a
conductor depends ?
i. Resistance varies directly with its length
ii. Resistance varies by its crosssectional area
iii. Resistance of the conductor not depends on the material with which it is made of
A) Only i and ii
B) Only ii and iii
C) Only i and iii
D) None of the above
)
)
)
)