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WorksheetsBEE Quiz
Total questions: 98
Worksheet time: 33mins
Name
Class
Date
1.
The positively charged particle inside nucleus is ____________
a)
Neutron
b)
Proton
c)
Electron
d)
none of these
2.
The number of electrons in an orbit is given by ___________
a)
2n2
b)
2n+n2
c)
n2
d)
none of these
3.
Charge of an electron is equal to __________
a)
1.6x1019 C
b)
1.6x10-19 C
c)
1.6x109 C
d)
1.6x109 C
4.
Electrons in an outermost orbit of an atom is called ___________
a)
Valence electrons
b)
protons
c)
Bound electrons
d)
neutrons
5.
The flow of electrical charge from one point to another is _________
a)
Current
b)
voltage
c)
power
d)
force
6.
The unit of current is _________
a)
volt
b)
Ampere
c)
watt
d)
ohm
7.
Current is represented by the symbol
a)
V
b)
A
c)
I
d)
B
8.
Electric pressure is also called _____
a)
Current
b)
resistance
c)
power
d)
voltage
9.
The unit of voltage is _________
a)
volt
b)
Ampere
c)
watt
d)
ohm
10.
Voltage is represented by the symbol
a)
A
b)
W
c)
V
d)
R
11.
The value of resistance for the color band : Brown, Black, Orange, Gold : ___________
a)
10kΩ
b)
1kΩ
c)
100kΩ
d)
none of these
12.
Tolerance of Gold band in resistor color coding is ___________
a)
+/-5%
b)
0.05
c)
-5%
d)
-10
13.
Tolerance of silver band in resistor color coding is ___________
a)
+/-10%
b)
0.05
c)
-5%
d)
-10
14.
Ohm’s law states that ____________
a)
v=i
b)
i= v
c)
v is directly propotional to i
d)
i= v
15.
According to Ohm's law R =
a)
V/I
b)
I/V
c)
VI
d)
I
16.
According to Ohm's law V =
a)
IR
b)
I/R
c)
R/I
d)
VR
17.
According to Ohm's law I =
a)
R/V
b)
VR
c)
IR
d)
V/R
18.
The ________ tend to increase their resistance with an increase in temperature
a)
Insulator
b)
capacitor
c)
Inductor
d)
conductor
19.
The ________ tend to decrease their resistance with an increase in temperature
a)
Inductor
b)
capacitor
c)
Insulator
d)
conductor
20.
The ______ is the rate, per unit time, at which electrical energy is transferred by an electric circuit.
a)
voltage
b)
current
c)
resistance
d)
Electric power
21.
The unit of energy is
a)
voltage
b)
Joule
c)
Watt
d)
Ampere
22.
The unit of power is
a)
Watt
b)
Volt
c)
Ampere
d)
Joule
23.
kilowatt is equal to
a)
100 watts
b)
10000 watts
c)
1000 watts
d)
10 watts
24.
The device which introduce resistance in a circuit is called __________
a)
Capacitor
b)
Inductor
c)
Resistor
d)
Transistor
25.
If three restors are connected in series, total resistance is _____________
a)
R1+R2+R3
b)
1/R1+1/R2
c)
R1-R2+R3
d)
R1R2R3
26.
The two restors are connected in parallel and the equation is _____________
a)
1/R1+1/R2
b)
R1+R2
c)
R1-R2+R3
d)
R1R2
27.
In a circuit the wires are cut off ,so there will be no current flow is
a)
short circuit
b)
Open circuit
c)
shut circuit
d)
closed loop
28.
Short circuit also refers
a)
open circuit
b)
closed circuit
c)
shut circuit
d)
open loop
29.
In a circuit the wires are connected so there will be flow of current is
a)
short circuit
b)
Open circuit
c)
shut circuit
d)
open loop
30.
KVL states that ___________
a)
Algebraic sum of voltages in a loop is zero
b)
Algebraic sum of currents meeting a point is zero
c)
Both a and b
d)
Algebraic sum of voltages and current in a loop is zero
31.
KCL states that ___________
a)
Algebraic sum of voltages in a loop is zero
b)
Algebraic sum of currents in a loop is zero
c)
Algebraic sum of currents in a junction is zero
d)
Algebraic sum of voltages and current in a loop is zero
32.
The unit of capacitor is __________
a)
ohm
b)
farad
c)
meter
d)
kilo ohm
33.
Capacitor is a ___________ component
a)
Active component
b)
passive component
c)
both a and b
d)
Metallic
34.
Capacitor blocks _________
a)
D.C
b)
A.C
c)
Both D.C A.C
d)
resiatance
35.
The _______ is a measure of capacitor’s ability to store charge.
a)
Inductance
b)
resistance
c)
Resistivity
d)
Capacitance
36.
The insulating layer between a capacitors plates is commonly called
a)
conductor
b)
diameter
c)
Dielectric
d)
inductor
37.
The _________ component used to couple alternating current from one circuit to another.
a)
Capacitor
b)
Transistor
c)
Resistor
d)
FET
38.
If two capacitors are connected in series the equation is ____________
a)
C1C2
b)
C1+C2
c)
C1+C2-C3
d)
1/C1+1/C2
39.
If two capacitors are connected in parallel the equation is ____________
a)
C1C2
b)
C1+C2
c)
C1+C2-C3
d)
1/C1+1/C2
40.
The electric charge that flows smoothly in one direction is called as __________
a)
Alternating current
b)
Resistance
c)
Inductance
d)
Direct current
41.
The electric charge that periodically switches the direction back and forth is known as ________
a)
Alternating current
b)
Resistance
c)
Inductance
d)
Direct current
42.
The number of cycles per second is called __________
a)
Frequency
b)
Waveform
c)
Period
d)
Cycle
43.
The time taken to complete one cycle is called __________
a)
Frequency
b)
Waveform
c)
Period
d)
Cycle
44.
The unit of frequency is
a)
second
b)
Hertz
c)
Ohm
d)
Farad
45.
The unit of time period is
a)
second
b)
Hertz
c)
Ohm
d)
Farad
46.
The reciprocal of frequency is
a)
Waveform
b)
Time Period
c)
Cycle
d)
Amplitude
47.
The maximum vertical distance reached, in either direction from the centre line of the wave is ____________
a)
Amplitude
b)
Peak Value
c)
Frequency
d)
RMS Value
48.
The vertical distance between the top and bottom of the wave is called ________
a)
Amplitude
b)
Peak to peak Value
c)
Frequency
d)
RMS Value
49.
Tthe value (voltage or current) of a wave at any particular instant is
a)
rms value
b)
Average
c)
Instantaneous value
d)
peak value
50.
RMS stands for
a)
Root Mean Square
b)
Rooled Mean Square
c)
Root Mile Square
d)
Root Mean Set
51.
The range of energies possessed by valence electrons is called ___________
a)
Valence Band
b)
Conduction Band
c)
Forbidden Energy Gap
d)
Free Electrons
52.
The range of energies possessed by free electrons is called ____________
a)
Valence Band
b)
Conduction Band
c)
Forbidden Energy Gap
d)
Free Band
53.
The energy gap between valence band and conduction band is called ______________
a)
Energy level diagram
b)
Free electrons
c)
Forbidden Energy Gap
d)
None of the these
54.
The substances which allow electric current to pass through them is called ____________
a)
Conductors
b)
Insulaltor
c)
Semiconductor
d)
Free electrons
55.
The substance which do not allow electric current to pass through them is called ____________
a)
Conductors
b)
Insulaltor
c)
Semiconductor
d)
Inductor
56.
Copper is an example of ____________
a)
Conductor
b)
Insulaltor
c)
Semiconductor
d)
Inductor
57.
Rubber is an example of ____________
a)
Conductor
b)
Insulaltor
c)
Semiconductor
d)
Inductor
58.
Silicon is an example of ____________
a)
Conductor
b)
Insulaltor
c)
Semiconductor
d)
Inductor
59.
In positive temperature co-efficient, resistance value ____________ as the temperature increases.
a)
Increases
b)
Decreases
c)
Remains the same
d)
fall
60.
In negative temperature co-efficient, resistance value ____________ as the temperature increases.
a)
Decreases
b)
Increases
c)
Remains the same
d)
rise
61.
The ________are solids whose conductivity lies between the conductivity of conductors and insulators.
a)
Conductors
b)
Resistors
c)
Insulator
d)
Semiconductors
62.
A semiconductor in extremely pure form is known as ____________
a)
Extrinsic Semiconductor
b)
Intrinsic Semiconductor
c)
Doping
d)
Impurity
63.
The process of adding impurity is called ___________
a)
Extrinsic Semiconductor
b)
Intrinsic Semiconductor
c)
Doping
d)
Impurity
64.
The process of adding ____________ is doping.
a)
Extrinsic Semiconductor
b)
Intrinsic Semiconductor
c)
Doping
d)
Impurity
65.
A pentavalent impurity has __________ valence electrons.
a)
Five
b)
Three
c)
Four
d)
Six
66.
A trivalent impurity has ______________ valence electrons.
a)
Five
b)
Three
c)
Four
d)
Six
67.
Boron ia an example of __________ impurity.
a)
Trivalent
b)
Pentavalent
c)
Intrinsic Semiconductor
d)
Tetravalent
68.
Phosphorous is an example of _________ impurity.
a)
Trivalent
b)
Pentavalent
c)
Intrinsic Semiconductor
d)
Tetravalent
69.
When an impurity is added to a semiconductor __________ is formed.
a)
Intrinsic Semiconductor
b)
Extrinsic Semiconductor
c)
Conductor
d)
Insulaltor
70.
The semiconductor formed when a pentavalent impurity is added to a pure semiconductor is ____________
a)
Conductor
b)
Insulaltor
c)
P type
d)
N type
71.
The semiconductor formed when a triavalent impurity is added to a pure semiconductor is ____________
a)
Conductor
b)
Insulaltor
c)
P type
d)
N type
72.
In N type semiconductor ___________ are the majority carriers.
a)
Ions
b)
Holes
c)
Electrons
d)
nutrons
73.
In N type semiconductor ___________ are the minority carriers.
a)
Ions
b)
Holes
c)
Electrons
d)
nutrons
74.
In P type semiconductor ___________are the minority carriers.
a)
Electrons
b)
Holes
c)
Ions
d)
nutrons
75.
In Ptype semiconductor ___________ are the majority carriers.
a)
Holes
b)
Ions
c)
Electrons
d)
nutrons
76.
A ___________ is a boundary or interface between p-type and n-type semiconductor materials
a)
cathode
b)
Insulaltor
c)
p–n junction
d)
conductor
77.
The positive terminal of the battery is connected to the p-type semiconductor and the negative terminal of the battery is connected to the n-type semiconductor is
a)
Reverse biased
b)
biased
c)
unbiased
d)
forward biased
78.
The positive terminal of the battery is connected to the n-type semiconductor and the negative terminal of the battery is connected to the p-type semiconductor is
a)
Reverse biased
b)
biased
c)
unbiased
d)
forward biased
79.
How many terminals are in a diode
a)
2
b)
4
c)
3
80.
The turn on voltage of a Ge junction diode is nearly __________ V.
a)
0.7
b)
0
c)
0.3
d)
0.6
81.
Another name of depletion layer is
a)
Barrier Potential
b)
Potential difference
c)
Potential energy
d)
Both a and b
82.
The turn on voltage of a Si junction diode is nearly __________ V.
a)
0.7
b)
0
c)
0.3
d)
None of the above
83.
When the diode is forward biased it acts as ___________
a)
Open switch
b)
Closed switch
c)
Both a and b
d)
open loop
84.
If the diode is reverse biased it act as ___________
a)
Open switch
b)
Closed switch
c)
Both a and b
d)
closed loop
85.
A zener diode is always __________
a)
Forward bias
b)
Reverse bias
c)
Both forward and reverse
d)
None of the above
86.
When the zener diode is in forward bias it shows the characteristics of an _______
a)
Special purpose diode
b)
Ordinary diode
c)
Tunnel diode
d)
Varactor diode
87.
Zener diodes are commonly used as ___________
a)
Voltage regulators
b)
clippers
c)
tunnel diodes
d)
Schottky diodes
88.
___________ is caused by impact of ionization of electron-hole pairs.
a)
Zener breakdown
b)
Energy band gap
c)
Avalanche breakdown
d)
doping
89.
The sudden generation of carriers rapidly increases the reverse current and give rise to the high slope conductance, this is known as __________
a)
hysteresis.
b)
avalanche break down
c)
zener break down
d)
doping
90.
A LED resembles a basic ___________ diode.
a)
NPN
b)
Zener diode
c)
PN junction
d)
All the above
91.
A __________ is a two lead semiconductor light source.
a)
Photo transistor
b)
LED
c)
Tunnel diode
d)
None of these
92.
LED stands for
a)
Light Emitting Diode
b)
Less Emitting Diode
c)
Low Emition Diode
d)
Light Energy Diode
93.
A _______ is an electronic device that converts AC voltage into DC voltage.
a)
LED
b)
rectifier
c)
Resistor
d)
Capacitor
94.
The rectifier which converts the positive half cycle of the input signal into pulsating DC output signal.
a)
Full wave rectifier
b)
Filter
c)
Inductor
d)
half wave rectifier
95.
The ________ is a circuit, which converts an ac voltage into a pulsating dc voltage using both half cycles of the applied ac voltage
a)
Filter
b)
Inductor
c)
Full Wave Rectifier
d)
half wave rectifier
96.
In centre tapped full wave rectifier, _________number of diodes are used.
a)
1
b)
2
c)
3
d)
4
97.
The number of diodes used in bridge rectifier are __________
a)
1
b)
2
c)
3
d)
4
98.
The digital system deals with ______________
a)
digits
b)
alphabets
c)
symbols
d)
operators
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