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Basic electronics quiz
part 2
1.What is the color code for a
220 5% resistor?
A.Red, Red, Brown, Gold
B.Orange, Orange, Black, Gold
C.Red, Red, Black, Gold
D.Red, Red, Brown, Silver
 Ans A.Red, Red,
Brown, Gold
 2.If 60 J of energy are available for
every 15 C of charge, what is the
voltage?
 A.4 V
 B.60 V
 C.15 V
 D.0.25 V
 Ans A.4 V
 Voltage = energy/charge = 60/15 =
4.
3.An atom's
atomic number
is determined by
the number of:
A.neutrons
minus protons
B.protons C.electrons D.neutrons
B.protons
The number of
protons in an
atom is the
atomic number.
4. A voltage will influence current only if the circuit is:
A.open
B.insulated
C.high resistance
D.closed
 D.closed
 If the circuit will closed, then only
currrent will flow throughtout the
circuit and by Ohm's law, V = IR.
5. Which resistive component is
designed to be temperature sensitive?
A.Thermistor
B.Rheostat
C.Potentiometer
D.Photoconductive cell
Ans
A.Thermistor
the resistor
value depends
on the
temperature
 6. The negative and positive charge
symbols are assigned (in that order)
to the:
 A.proton and electron
 B.electron and proton
 C.atom and nucleus
 D.electron and element
 B.electron and proton
 Negative charge
represents electrons
and positive charge
represents protons.
7. Which voltage source converts
chemical energy to electrical energy?
A.Electrical generator
B.Battery
C.Solar cell
D.Electronic power supply
 B.Battery
8. If 40 C of charge
flow past a point in
20 s, what is the
current?
A.2 A B.0.5 A C.20 A D.40 A
 Ans A.2 A
 Current
=Coloumbs/Time.So,
current = 40/20.Ans =
2A.
 9. How many valence
shell electrons are there
in semiconductor
atoms?
 A.16
 B.8
 C.4
 D.2
 Ans C.4
 Yes it is true that semiconductor
have 4 electrons in outer most shell
and conductor have less than 4
electron in the outer most shell an
10. Which unit of charge contains
6.25  1018 electrons?
A.An ampere
B.A coulomb
C.A volt
D.A joule
ANS A COULOMB 1 COLUMB = 6.25*10^18
ELECTRONS
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basic electronic part 2.pptx

  • 2. 1.What is the color code for a 220 5% resistor? A.Red, Red, Brown, Gold B.Orange, Orange, Black, Gold C.Red, Red, Black, Gold D.Red, Red, Brown, Silver
  • 3. Ans A.Red, Red, Brown, Gold
  • 4. 2.If 60 J of energy are available for every 15 C of charge, what is the voltage? A.4 V B.60 V C.15 V D.0.25 V
  • 5. Ans A.4 V Voltage = energy/charge = 60/15 = 4.
  • 6. 3.An atom's atomic number is determined by the number of: A.neutrons minus protons B.protons C.electrons D.neutrons
  • 7. B.protons The number of protons in an atom is the atomic number.
  • 8. 4. A voltage will influence current only if the circuit is: A.open B.insulated C.high resistance D.closed
  • 9. D.closed If the circuit will closed, then only currrent will flow throughtout the circuit and by Ohm's law, V = IR.
  • 10. 5. Which resistive component is designed to be temperature sensitive? A.Thermistor B.Rheostat C.Potentiometer D.Photoconductive cell
  • 12. 6. The negative and positive charge symbols are assigned (in that order) to the: A.proton and electron B.electron and proton C.atom and nucleus D.electron and element
  • 13. B.electron and proton Negative charge represents electrons and positive charge represents protons.
  • 14. 7. Which voltage source converts chemical energy to electrical energy? A.Electrical generator B.Battery C.Solar cell D.Electronic power supply
  • 16. 8. If 40 C of charge flow past a point in 20 s, what is the current? A.2 A B.0.5 A C.20 A D.40 A
  • 17. Ans A.2 A Current =Coloumbs/Time.So, current = 40/20.Ans = 2A.
  • 18. 9. How many valence shell electrons are there in semiconductor atoms? A.16 B.8 C.4 D.2
  • 19. Ans C.4 Yes it is true that semiconductor have 4 electrons in outer most shell and conductor have less than 4 electron in the outer most shell an
  • 20. 10. Which unit of charge contains 6.25 1018 electrons? A.An ampere B.A coulomb C.A volt D.A joule
  • 21. ANS A COULOMB 1 COLUMB = 6.25*10^18 ELECTRONS