Yaadannoo boqonnaa fi gaaffii shaakalaa

Boqonnaa 5 Fiizikii kutaa 10: Maagneetizimii

Wanti fuula kana irra jiru hundi boqonnaa 5 kitaaba Fiizikii kutaa 10 tiif: wanta boqonnaan haguugu, yaadannoo gabaabaa, gaaffii shaakalaa deebii isaanii waliin, fi viidiyoo barnootaa bakka jirutti.

6
Kaardii: 10
Gaaffii shaakalaa boqonnaa 5: 132–155
Fuula kitaabaa boqonnaa 5

Boqonnaan 5 maal haguuga

1.Magnet
2.Magnetic Field
3.The compass and the earth's magnetic field
4.Magnetic field of a current carrying conductor
5.Magnetic force on a moving charge
6.Magnetic force on a current carrying conductor
7.Magnetic force between two parallel current carrying con
8.Applications of magnetic forces and fields

Yaadannoo gabaabaa boqonnaa 5

Kaardiiwwan fuula Fiizikii kutaa 10 irratti boqonnaa kana jala galmaa'an. Tokko tokkoon bani.

Humna currents waltaraa gidduu jiruSeera

Yoom akka itti fayyadamtu

Shiboowwan currents waltaraa ta'an lama wal harkisuu yookiin wal dhiibuu isaanii murteessuuf seera kanatti fayyadamaa.

Of eeggadhu

Currents kallattii walfakkaataa qaban wal harkisu, kallattii faallaa qaban immoo wal dhiibu. Kun amala charges elektirikii irraa faallaadha.

Grade 10 Physics, fuula 132-155 irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Magnetic field shiboo qajeelaaFoormulaa

B = \frac{\mu_0 I}{2\pi r}

B = \frac{\mu_0 I}{2\pi r}

$B$: cimina dirree maagneetii $\text{T}$
$\mu_0$: dabarsoo bakka duwwaa $\text{T}\,\text{m}\,\text{A}^{-1}$
$I$: yaatuu elektiriikii $\text{A}$
$r$: fageenya raadiyaalii shiboo irraa $\text{m}$

Yoom akka itti fayyadamtu

Shiboo qajeelaa electric current dabarsu irraa fageenya r irratti hamma magnetic field herreguuf foormulaa kanatti fayyadamaa.

Of eeggadhu

Shallaggii dura fageenya r sentimeetira irraa gara meetiratti jijjiiraa.

Grade 10 Physics, fuula 132-155 irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Magnetic force shiboo current baatu irra qubatuFoormulaa

F = I l B \sin\theta

F = I l B \sin\theta

$F$: humna maagneetii $\text{N}$
$I$: yaatuu elektiriikii $\text{A}$
$l$: dheerina shiboo dirree keessaa $\text{m}$
$B$: cimina dirree maagneetii $\text{T}$
$\theta$: kofa yaatuu fi dirree maagneetii gidduutti $\text{rad}$

Yoom akka itti fayyadamtu

Shiboo qajeelaa magnetic field keessatti current dabarsu irratti humna magnetic uumamu herreguuf foormulaa kanatti fayyadamaa.

Of eeggadhu

Kofli theta kallattii yaa'a current fi sarara magnetic field gidduutti safarama.

Grade 10 Physics, fuula 132-155 irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Magnetic force charge socho'u irra qubatuFoormulaa

F = q v B \sin\theta

F = q v B \sin\theta

$F$: humna maagneetii $\text{N}$
$q$: chaarjii $\text{C}$
$v$: saffisa chaarjii $\text{m}\,\text{s}^{-1}$
$B$: cimina dirree maagneetii $\text{T}$
$\theta$: kofa ariitii fi dirree maagneetii gidduutti $\text{rad}$

Yoom akka itti fayyadamtu

Magnetic force charge magnetic field keessa socho'u irratti dhiibbaa uumu baruuf foormulaa kanatti fayyadamaa.

Of eeggadhu

Yoo kallattiin soochii charge magnetic field wajjin waltaraa ta'e sin 0 zeeroo waan ta'uuf humni zeeroo ta'a.

Grade 10 Physics, fuula 132-155 irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e

Seera quba guddaa harka mirgaa wayirii qajeelaafSeeraFiildiin karaa kamiin wayirii naannawa? · Sararri fiildii bocni isaa maali? · Quba guddaan karentii kam hordofa? · +3

Gaaffii	Maal gochuu	Waan sitti himu
Fiildiin karaa kamiin wayirii naannawa?	Wayirii harka mirgaatiin qabi; quba guddaan kee karaa conventional current yaa'u irra haa ciisu.	Qubni kee kan marfaman karaa fiildiin itti naannawu agarsiisu.
Sararri fiildii bocni isaa maali?	Fuula wayirii sanaan rog-qajeelaa uumu irratti ilaali.	Geengoo cufaa wayirii sana giddu-gala godhatan, hundinuu fuula sana keessa jiran.
Quba guddaan karentii kam hordofa?	Conventional current: madda sanaan alatti terminaalii pozaatiivii irraa gara terminaalii negaatiiviitti kan yaa'u.	Kun yaa'a elektiroonii faallaa dha.
Bakka filatame tokko irratti fiildiin gara kamitti akeeka?	Geengoo tuqaa sana keessa darbu kaasii taanjentii isaa fudhu.	Fiildiin wayirii sanaa fi sarara wayirii irraa gara tuqaa sanaa deemu lamaanuu wajjin rog-qajeelaa uuma.
Fiildiin hangam cimaa dha?	$B = \dfrac{\mu_0 I}{2\pi r}$ fayyadami; $r$ fageenya rog-qajeelaa ekseelii wayirii irraa yoo ta'u, $\mu_0 = 4\pi \times 10^{-7}\,\text{T}\cdot\text{m/A}$ dha.	Karentiin dachaa lama yoo ta'e fiildiin dachaa lama ta'a. Fageenyi dachaa lama yoo ta'e fiildiin walakkaa ta'a.
Foormulaan sun yoom hojjechuu dhiisa?	Utuu itti hin fayyadamin dura boca kondaakteraa ilaali.	Foormulaan kun wayirii qajeelaa dheeraaf qofa. Luuppiin geengoo fi soleenooyidiin tokkoon tokkoon isaanii foormulaa mataa isaanii qabu.

Yoom akka itti fayyadamtu

Fiildiin maagneetii karaa kamiin wayirii qajeelaa karentii baatu tokko akka naannawu beekuuf fayyadami. Wayirii sana harka mirgaatiin qabi; quba guddaa kee karaa conventional current yaa'u irra ciibsi. Qubni marfaman karaa fiildiin itti naannawu agarsiisu.

Of eeggadhu

Dogoggorri baay'inaan mul'atu seericha faallaatti fayyadamuu dha, jechuunis qubaan wayirii marsanii quba guddaa naanneessuu. Kun deebii hunda ni faallessa. Quba guddaan karaa conventional current yaa'u wayirii irra ciisa; kan naannawan qubaa dha. Kiyyoon lammaffaan fageenya dha. Fiildiin akka 1/r hir'ata, kanaaf tuqaan dachaa lama fagaate fiildii walakkaa argata malee tokko afraffaa hin argatu; barataan amala garagalcha iskuweerii seera Coulomb irraa fide yeroo hunda ni dogoggora.

Domeenii maagneetii fi maaliif pooliiwwan wal harkisan yookaan wal dhiibanSeeraCirracha sibiilaa qulqulluu tokko · Sibiilli sun yeroo magnetize ta'u · Maagneetii saturated ta'e · +4

Haala	Domeeniiwwan maal hojjetu	Waan ati argitu
Cirracha sibiilaa qulqulluu tokko	Domeeniiwwan karaa adda addaatti waan akeekaniif bu'aan isaanii wal haqa.	Meeshichi alaan maagneetummaa tokko illee hin agarsiisu.
Sibiilli sun yeroo magnetize ta'u	Domeeniiwwan duraanuu karaa sirriitti akeekan ni guddatu; kaan immoo garagalanii isaanitti dabalamu.	Bu'aan isaanii walitti ida'amee meeshichi maagneetii cimaa ta'a.
Maagneetii saturated ta'e	Domeeniiwwan hundinuu duraan tarreeffamaniiru.	Maagneetichi sanaa ol cimuu hin danda'u.
Maagneetii akka malee ho'e, tumame yookaan kufe	Domeeniiwwan tarree isaanii keessaa ba'u.	Maagneetichi humna isaa dhaba.
Mismaara sibiilaa poolii tokkotti dhiyeeffame	Maagneetiin dhihoo jiru dursee domeeniiwwan mismaarichaa tarreessa.	Mismaarichi poolii lamaan isaatiinuu ni harkifama; kanaaf harkifamuun qofti waa hin mirkaneessu.
Maagneetiiwwan lama walitti dhiyaatan	Maagneetiin tokkoon tokkoon isaanii fiildii domeeniiwwan tarreeffaman kan biraa uuman keessa jira.	Pooliiwwan wal fakkaatan wal dhiibu; kanneen adda ta'an immoo wal harkisu.
Maagneetii lamatti caccabe	Tokkoon tokkoon caccabaa domeeniiwwan tarreeffaman ofii isaa qaba.	Tokkoon tokkoon caccabaa poolii kaabaa fi poolii kibbaa qaba.

Yoom akka itti fayyadamtu

Yeroo gaaffiin akkamitti cirrachi sibiilaa maagneetii ta'a, maagneetiin maaliif humna isaa dhaba, yookaan wantoonni lamaan wal harkisu moo wal dhiibu jedhee gaafatu fayyadami. Domeeniiwwan fiildiin maagneetii dhaabbataa eessaa akka dhufe himu; harkisuun yookaan dhiibuun immoo maagneetiin tokko fiildii isa kaanii keessa waan jiruuf.

Of eeggadhu

Harkifamuun qofti wanti tokko maagneetii ta'uu isaa hin mirkaneessu. Maagneetiin ulee sibiilaa hin magnetize ta'in poolii lamaan isaatiinuu ni harkisa, sababiin isaas dursee domeeniiwwan ulee sanaa waan tarreessuuf. Wantoonni lamaanuu maagneetii ta'uu isaanii kan mirkaneessu wal dhiibuu qofa. Kiyyoon walfakkaataan kompaasii illee ni qabata: pooliin maagneetii Kaaba jeeyoograafii bira jiru poolii kibbaa maagneetii ti, fiixeen kaabaa lilmoo sanaa gara isaatti kan garagalu sababa kanaafi.

Gaaffii shaakalaa boqonnaa 5

Gaaffii filannoo 10 boqonnaa kana irratti barreeffaman, tokkoon tokkoon isaanii deebii fi sababa qabu. Deebii banuu dura yaali. Gaaffiin kun Ingiliffaa tiin.

Gaaffii 1

What happens if a bar magnet is broken into two pieces?

A.One piece has only a north pole and the other piece has only a south pole.
B.Each piece becomes a complete magnet with both a north and a south pole.
C.Both pieces lose all of their magnetic properties permanently.
D.The pieces turn into unmagnetized pieces of iron.

Deebii fi sababa agarsiisi

Deebii: B Each piece becomes a complete magnet with both a north and a south pole.

Sababa

Magnetic poles always exist in pairs. When a magnet is broken, each piece still has both a north pole and a south pole.

Gaaffii 2

Which type of magnet loses its magnetic property when the external magnetic field is removed?

A.Temporary magnet
B.Permanent magnet
C.Natural bar magnet
D.Hard magnet

Deebii fi sababa agarsiisi

Deebii: A Temporary magnet

Sababa

Temporary magnets are materials that lose their magnetic property when the magnetic field is removed, whereas permanent magnets retain their magnetism.

Gaaffii 3

Where is the magnetic field around a bar magnet the strongest?

A.Exactly at the center of the magnet
B.Equally strong at every point around the magnet
C.Near the poles of the magnet
D.Far away from the magnet

Deebii fi sababa agarsiisi

Deebii: C Near the poles of the magnet

Sababa

The magnetic field is strongest near the magnetic poles and weaker in the region between the poles.

Gaaffii 4

Two long parallel wires placed near Hawassa carry electric current in the same direction. What magnetic force do they exert on each other?

A.They repel each other.
B.They exert zero force on each other.
C.They push each other in opposite directions along their length.
D.They attract each other.

Deebii fi sababa agarsiisi

Deebii: D They attract each other.

Sababa

When two parallel conductors carry currents in the same direction, the magnetic force between them is attractive.

Gaaffii 5

Why does the north-seeking pole of a compass needle point towards the Earth's geographic north?

A.Like magnetic poles always attract each other.
B.The Earth's magnetic south pole is located near the geographic north pole.
C.The Earth's geographic north has a large positive electric charge.
D.The needle is repelled by the Earth's geographic south pole.

Deebii fi sababa agarsiisi

Deebii: B The Earth's magnetic south pole is located near the geographic north pole.

Sababa

Because opposite poles attract, the north pole of a compass needle is attracted to the Earth's magnetic south pole, which is located near the geographic north pole.

Gaaffii 6

The Earth's geographic north pole is separated from the direction of the magnetic north pole by an angle of approximately:

A.11.5 degrees
B.23.5 degrees
C.45.0 degrees
D.90.0 degrees

Deebii fi sababa agarsiisi

Deebii: A 11.5 degrees

Sababa

The geographic north pole, through which the Earth's rotation axis passes, is about 11.5 degrees away from the magnetic north pole.

Gaaffii 7

On what two factors does the magnetic field (B) around a straight current-carrying wire depend?

A.Mass of the wire and air pressure
B.Length of the wire and voltage only
C.Current in the wire and distance from the wire
D.Temperature and cross-sectional shape of the wire

Deebii fi sababa agarsiisi

Deebii: C Current in the wire and distance from the wire

Sababa

The magnetic field B produced by a long straight wire depends directly on the current I and inversely on the distance r from the wire (B = μ₀I / (2πr)).

Gaaffii 8

In a laboratory in Addis Ababa, a straight wire of length 0.5 m carries a current of 8.0 A perpendicular to a magnetic field. If the wire experiences a magnetic force of 0.40 N, what is the magnetic field strength?

A.1.60 T
B.0.25 T
C.0.80 T
D.0.10 T

Deebii fi sababa agarsiisi

Deebii: D 0.10 T

Sababa

Using F = ILB, we solve for B: B = F / (IL) = 0.40 N / (8.0 A × 0.5 m) = 0.40 / 4.0 = 0.10 T.

Gaaffii 9

According to the right-hand rule for the force on a current-carrying wire in a magnetic field, what does your thumb point toward?

A.The direction of the conventional current in the wire
B.The direction of the magnetic field
C.The direction of the magnetic force
D.The direction of the geographic north pole

Deebii fi sababa agarsiisi

Deebii: A The direction of the conventional current in the wire

Sababa

By the right-hand rule, your fingers point in the direction of the magnetic field B, your thumb points in the direction of the conventional current, and your palm pushes in the direction of the magnetic force.

Gaaffii 10

A wire 625 m long is placed perpendicular to a 0.40 T magnetic field. A magnetic force of 1.8 N acts on the wire. What is the current flowing in the wire?

A.250.0 A
B.1.39 A
C.0.0072 A
D.0.072 A

Deebii fi sababa agarsiisi

Deebii: C 0.0072 A

Sababa

Using F = ILB, we rearrange to find current: I = F / (LB) = 1.8 N / (625 m × 0.40 T) = 1.8 / 250 = 0.0072 A.

Appiin boqonnaa kana irratti gaaffii 12 qaba; utuu hojjettuu ni sirreessa. Kan asii jiran 10 jalqabaa ti.

Fuula kitaabaa boqonnaa 5

Boqonnaan 5 Maxxansa Ministeera Barnootaa keessatti fuula 132 hanga fuula 155 ti.

Maxxansa Ministeera Barnootaa, Ingiliffaa, Fuula 212

PDF buufadhaa

Yaadannoo gabaabaa Fiizikii kutaa 10 hunda

Boqonnaa kana appii keessatti shaakali

Temari boqonnaa kana gara shaakala yeroon daangeffametti jijjiira; utuu hojjettuu ni sirreessa; wanti si hin galinis barsiisaa AI tiin ni ibsama.

Bilisaan jalqabi

Temari.et appii Android qaba; Google Play irratti bilisaan argama.

Waa'ee appii Temari