1.
Atomic number of silicon is equal to
(A)
6
(B)
14
(C)
18
(D)
44
Answer-
(B)
2. Who Is the responsible for the current flowing in a conductor wire?
(A)
difference in temperature
(B)
Difference in voltage
(C)
difference in resistance
(D)
All this
Answer-
(B)
3.
The smallest particle that has all the properties of that element ………. Is
called
(A)
Atom
(B)
Proton
(C)
Element
(D)
Molecules
Answer-
(D)
4.
Who discovered the magnetic effect of electric current?
(A)
Faraday
(B)
Arsted
(C)
Joule
(D)
Answer-
(B)
5.
What is the unit of electric energy?
(A)
Watts
(B)
Kilowatt hour
(C)
KW
(D)
Joule
Answer-
(B)
6.
Which of the following is the application of direct current?
(A)
Electroplating
(B)
Arc welding
(C)
Battery charging
(D)
All this
Answer-
(D)
7.
Which of the following is the basic particle of nature?
(A)
Neutron
(B)
Proton
(C)
Electron
(D)
All this
Answer-
(D)
8.
Piezoelectric effect is usually seen?
(A)
Conductor and super conductor
(B)
In conductor and semiconductors
(C)
In electrical insulators
(D)
Insulators and
Answer-
(B)
9.
Resistance of most metals and alloys increases with temperature. From the
perspective of this statement, the resistance of semiconductors and electrolyte solutions ……….
(A) increases due to
(B) decreases due to
(C)
remains fixed
(D)
temperature rise has no effect
Answer-
(B)
10.
The corona losses is reduced when the size of the driver
(A)
is oval
(B)
is independent of size
(C)
flattened
(D)
is circular
Answer-
(D)
11.
When an electric current flows towards the Earth, the potential of the object….
And when electric current flows from the earth towards the object, the
potential of that object ………………. it happens
(A)
negative, positive
(B)
positive, positive
(C)
negative,
(D)
Positive, negative
Answer-
(D)
12.
Which of the following is not divisible?
(A) Molecule
(B)
Mix compound
(C)
Atom
(D)
All these
Answer-
(D)
13.
The central dense part of an atom is called?
(A)
Electron
(B)
Compound
(C)
(D)
None of the above
Answer-
(C)
14.
Who prevents the change of current in the circuit?
(A)
conductor
(B)
capacitor
(C)
Resistor
(D)
Inductor
Answer-
(C)
15.
Heavy water molecule is
(A)
18
(B)
20
(C)
34
(D)
40
Answer-
(B)
16.
Iron is an essential but insufficient state for crystals to exhibit
electricity?
(A)
Absence of center of balance
(B)
presence of center of balance
(C)
Presence of both transferable and cyclic equilibrium
(D)
Absence of both transferable and cyclic equilibrium
Answer-
(A)
17.
What is the process of making atoms of atoms or groups of atoms?
(A) Potential Differential
(B)
ion
(C)
ionization
(D)
None of these
Answer-
(C)
18.
"The weight, volume and size of some substances are fixed" With which
of the following states of matter is this statement related?
(A)
Fluid
(B)
Gas
(C)
solid
(D)
None of these
Answer-
(C)
19.
According to the rules of atomic structure, the formation of a new orbit can
start only when the electron is complete ……… .. in an orbit?
(A)
6
(B)
8
(C)
10
(D)
12
Answer-
(B)
20.
A resistance-free choke current of 5 mA flows from a 200 V alternating source
How much energy is consumed in the choke?
(A)
0 J
(B)
4.4 J
(C)
500 J
(D)
1000 J
No comments:
Post a Comment