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8/3/2019 Chapter 09 - Electronics
http://slidepdf.com/reader/full/chapter-09-electronics 1/7
http://nazuris.blogspot.com/ [SPM] chapter 09 – ELECTRONICS
Bank Soalan Fizik - SMAPT
http://nazuris.blogspot.com/
1
SPM 2003
44 The process of adding a trivalent atom to a pure
silicon crystal is known as
[A] Doping
[B] Donating
[C] Excitation
[D] Polarization
45 The diagram shows a circuit containing bulbs X, Y and
Z.
Which bulb in the circuit will light up when the switch ison?
[A] Z only
[B] X and Y only
[C] Y and Z only
[D] X, Y and Z
46 The diagram shows the symbol for a transistor.
Which of the following shows the correct name of the
electrode P and the type of the transistor?
Electrode P Type of Transistor
[A] Emitter pnp
[B] Collector pnp
[C] Emitter npn
[D] Collector npn
47 The diagram shows a logic gates circuit.
Which of the following truth tables represents output R
in the circuits?
[A] P Q R [B] P Q R
0 0 1 0 0 0
0 1 0 0 1 1
1 0 1 1 0 0
1 1 0 1 1 1
[C] P Q R [D] P Q R
0 0 0 0 0 0
0 1 1 0 1 1
1 0 1 1 0 1
1 1 0 1 1 0
SPM 2004
42 When the switch is on, the current that flows in an
electronic advertisement board is 9.0 x 10-5
A.
What is the number of electrons flowing in the
advertisement board when is switched on for 2
hours?
[Charge of an electron = 1.6 x 10-9]
[A] 3.84 x 1011
[B] 1.67 x 1014
[C] 1.35 x 1018
[D] 4.17 x 1023
[E] 1.50 x 1027
43 The diagram shows the combination of three
logic gates.
The truth table for the combination of the three
logic gates is as follows-
Input Output
P Q R
0
0
1
1
0
1
0
1
1
1
1
0
What is gate X?
[A] AND [B] NAND
[B] OR [C] NOR
44 In which circuit does the bulb light up?
8/3/2019 Chapter 09 - Electronics
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http://nazuris.blogspot.com/ [SPM] chapter 09 – ELECTRONICS
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2
46 The circrait represents a Boolean algebraic
principle with output Z
Which of the Boolean algebraic expression representsthe output Z?
[A] Z = X.Y [C] Z = X.Y
[B] Z = X.Y [D] Z = X.Y
47 Which of the following, pairs of atoms can act s an
impurity to produce an n-type semiconductor when
doped into a pure semiconductor?
[A] Boron and phosphorus
[B] Arsenic and antimony
[C] Indium and gallium
[D] Antimony and gallium
SPM 2005
44 The diagram shows a circuit consisting of a diode and a
bulb. When the switch is on, the bulb does not light up.
Gambar rajah menunjukkan litar yang mengandungi
diod dan mentol. Apabila suis dihidupkan, mentol
tidak menyala.
What needs to be done to light up the bulb?
Apakah yang perlu dilakukan untuk menyalakan
mentol itu?
[A] Replace with a new bulb
Menggantikan mentol baru [B] Increase the number of dry cells
Menambahkan bilangan sel kering
[C] Reverse the diode connection
Menyongsangkan sambungan diod
[D] Connect a resistor parallel to the bulb
Menyambungkan satu perintang selari dengan
mentol
45 Which diagram shows the correct movement of an
electron beam in an electric field?
Gambar rajah pergerakan yang medan elektrik? yang
manakah menunjukkan betul bagi alur elektron dalam
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http://nazuris.blogspot.com/ [SPM] chapter 09 – ELECTRONICS
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3
46 The diagram shows a logic gate circuit with input
signals, K and L.
Gambar rajah menunjukkan satu litar get logik
dengan isyarat inputnya, K dan L.
Which of the following output signals is produced by the
logic gate circuit?
Antara isyarat output berikut, yang manakah dihasilkan
oleh litar get logik itu?
47 In which circuit will the light-emitting diode (LED) light up
when the switch is on?
Dalam litar manakah diod pemancar cahaya (LED)
akan menyala apabila suis dihidupkan?
SPM 2006
44 Which of the following circuits can function?
Antara litar berikut, yang manakah boleh berfungsi?
45 Which of the following diagrams is an n-type
semiconductor?
Antara rajah berikut, yang manakah semikonduktor
jenis-n?
46 The adding of impurity into pure semiconductor material
is known as
Penambahan bendasing ke dalam bahan semikonduktor
tulen dikenali sebagai
[A] doping
pendopan
[B] rectif ication
rektifikasi
[C] amplification
amplifikasi
[D] thermionic emission
pancaran termion
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47 Diagram 28 shows a combination of three logic gates.
Rajah 28 menunjukkan kombinasi tiga get logik.
Which truth table is correct for the combination of the
three logic gates?Jadual kebenaran yang manakah betul bagi kombinasi
tiga get logik itu?
SPM 2007
44 Diagram 27 shows a circuit connected to the cathode ray
oscilloscope (CRO).
Rajah 27 menunjukkan satu litar yang disambungkan
kepada osiloskop sinar katod (OSK).
Which of the following traces is the correct one shown on
the CRO?
Antara surihan berikut, yang manakah surihan yang betul
dipaparkan pada OSK?
45 What is the function of a diode?
Apaknh fungsi diod?
[A] Acts as a current amplifier
Bertindak sebagai penguat arus
[B] Acts as an automatic switch
Bertindak sebagai suis automatik
[C] Stores electric charge
Menyimpan cas elektrik
[D] Allows the current to pass in one direction only
Membenarkan arus melalui dalam satu arah sahaja
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46 Diagram 28 shows an automatic switch circuit to light up a
bulb at night.
Rajah 28 menunjukkan litar suis autoinatik untuk
menyalakan mentol pada waktu malam .
What changes should be done to light up the bulb during
the day time?
Apakah perubahan yang perlu dilakukan untu
menyalakan mentol pada waktu siang?
[A] Reverse the terminals of the battery
Songsangkan terminal bateri
[B] Interchange R1 and R2
Tukar antara R1 dan R2
[C] Replace the npn transistor with a pnp transistor
Ganti transistor npn dengan transistor pnp
[D] Replace resistor R3 with a resistor of lower
resislance
Ganti perintang R3 dengan perintang yang lebih
rendah rintangan
47 Diagram 29 shows a logic gate circuit.
Rajah 29 menunjukkan satu litar get logik.
Which of the following truth tables represents output R in
the circuit?
Antara jadual kebenaran berikut, yang manakahmewakili output R bagi litar itu?
SPM 2008
44 Diagram 27 shows a cathode being heated by a filament.
Rajah 27 menunjukkan satu katod yang dipanaskan oleh
satu filamen.
Which particle is emitted from the cathode?
Zarah manakah yang dipancarkan dari katod?
[A] Proton [B] Neutron
Proton Neutron
[C] Electron [D] Alpha
Elektron Alfa
45 Diagram 28 shows an electric circuit which contains 4
identical bulbs, W, X, Y and Z. Three of the bulbs light up
continuously.
Rajah 28 menunjukkan litar elektrik yang mengandungi 4
buah mentol, serupa.W X, Y dan Z yang tiga daripada
mentol-mentol itu menyala berteru.san.
Which bulbs light up continuously?
Mentol-mentol manakah yang menyala berterusan?
[A] W, Y, Z [B] W, X, Z
[C] X, W, Y [D] X, Y, Z
46 Which statement about a transistor is correct?
Pernyataan manakah yang betul mengenai suatu
transistor?
[A] Has two electrodes
Mempurnyai dua elektrod
[B] Acts as a full wave rectifier
Berfungsi sebagai rektifier gelombang penuh
[C] Has its own internal energy supply
Mempunyai bekalan tenaga dalam sendiri
[D] Functions as an amplifier
Berfungsi sebagai amplffier
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47 Diagram 29 shows a combination of two logic gates.
Rajah 29 mempunyai satu kombinasi dua get logik.
Which truth table is correct?
Jadual kebenaran manakah yang betul?
SPM 2009
44 Diagrarn 26 shows an audio signal generator connected
to a cathode ray oscilloscope, CRO.
Rajah26 menunjukkan suatu penjana isyarat audio
disambungkan ke,osiloskop sinar katod, OSK .
Which signal shows the loudest and the highest pitched
audio signal?
Isyarat manakah yang menunjukkan isyarat audio yang,
paling kuat dan paling langsing?
45 Diagram 27 shows a full wave rectifier circuit.
Rajah 27 menunjukkan suatu litar rektifikasi gelombang
penuh.
The output wave form is smoothen because .
Gelombang output yang terbentuk diratakan kerana
[A] the resistant of the resistor is always increasing and
decreasing
rintangan perintang sentiasa bertambah dan
berkurang
[B] the charges in the capacitor is always increasing
and decreasing
cas dalam kapasitor sentiasa bertambah dan
berkurang
[C] the number of electrons in the CRO is always
increasing and decreasing
bilangan elekton dalam OSK sentiasa bertambah
dan berkurang [D] the current flows through the diode is always
increasing and decreasing
arus yang mengalir melalui diod sentiasa
bertambah dan berkurang
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46 Diagram 28 shows a p-n junction diode.
Rajah 28 menunjukkan satu diod simpang p-n.
When the diode is in reverse biased, the depletion layer
widens because
Apabila diod disambung secara pincang songsang,
lapisan susutan menjadi lebar kerana
[A] the electrons and holes are pulled away from the
p-n junction
elektron dan lohong ditarik menjauhi simpang p-n
[B] the electrons from the n-type are pulled across the
p-n junction
elektron dari jenis-n d.itarik merentasi simpang p-n
[C] the negative charges flow from the negative
terminnal to the p-type.
semiconductor cas negatif mengalir darl terrninal
negatif ke semikonduktor jenis-p
[D] the positive charges flow from the positive terminal
to the n-type semiconductor
cas positif mengalir dnri terminal positif ke
semikonduktor jenis-n
47 Diagram 29 shows a logic gate circuit with input signals P
and Q.
Rajah29 menunjukkan litar get logik dengan isyarat input P d.an Q.
Which diagram shows the correct shape of the output
signal?
Rajah manakah yang menuijukkan bentuk yang betul
bagi isyarat output?
SPM 2010
47 Diagram 37 shows a system for the transmission of
electricity.
Rajah 37 menunjukkan satu sistem penghantaran
elektrik.
Which combination of the primary and secondary coils of
transformers P and Q is correct?
Kombinasi gegelung primer dan sekunder yang manakah
betul bagi transformer P dan Q?