
FIZIK ELEKTROMAGNET
Presentation
•
Physics
•
11th Grade
•
Practice Problem
•
Hard
NORHAFIZAN Moe
Used 18+ times
FREE Resource
0 Slides • 10 Questions
1
Multiple Choice
Rajah menunjukkan seutas dawai yang membawa arus di antara kutub-kutub sepasang magnet kekal. Apakah arah daya pada dawai itu?
The diagram shows a current-carrying wire between the poles of a pair of permanent magnets. What is the direction of the force on the wire?
A
B
C
D
2
Multiple Choice
Rajah di bawah menunjukkan konduktor pembawa arus di dalam medan magnet. Pada arah manakah daya itu bertindak ke atas konduktor?
The diagram below shows a current-carrying conductor in a magnetic field. What is the direction of the force that acts on the conductor?
K
L
M
J
3
Multiple Choice
Rajah menunjukkan sebatang magnet yang dilepaskan dari satu ketinggian dan kemudian memasuki sebuah gegelung yang disambung ke sebuah galvanometer. Pesongan jarum galvanometer akan bertambah apabila ...
The diagram shows a magnet that is released from a height and then enters a coil which is connected to a galvanometer. The deflection of the pointer of the galvanometer increases when ...
luas keratan rentas dawai bertambah
the cross-section area of the wire increases
magnet itu dilepaskan dari kedudukan yang lebih tinggi
the magnet is released from a higher position
kekutuban magnet bertambah
the polarity of the magnet increases
lilitan pada gegelung dijarakkan
the turns of the coil are set further apart
4
Multiple Choice
Rajah menunjukkan sebatang magnet bar ditolak masuk ke dalam satu solenoid yang disambung kepada sebuah galvanometer berpusat sifar. Apakah yang akan berlaku kepada jarum penunjuk galvanometer?
The diagram shows a bar magnet pushed into a solenoid connected to a zero-centered galvanometer. What will happen to the galvanometer indicator pointer?
terpesong dan kembali ke sifar
deflect and return to zero
terpesong dan kekal di situ
deflect and remain there
tidak terpesong
not deflect
5
Multiple Choice
Rajah menunjukkan bilangan lilitan pada pasangan terminal output suatu transformer. Pasangan terminal output yang manakah, voltan output adalah 12 V?
Diagram shows the number of turns on the output terminal pair of a transformer. Which pair of output terminals, the output voltage is 12 V?
R-S
Q-R
P-Q
P-R
6
Multiple Choice
Mengapakah teras besi lembut digunakan dalam sebuah transformer?
Why is a soft iron core used in a transformer?
mengurangkan arus pusar
reduce the eddy current
mengurangkan kehilangan histeris
reduce the hystherisis loss
mengurangkan kebocoran fluks magnet
reduce magnetic flux leakage
7
Multiple Choice
A
B
C
D
8
Multiple Choice
Rajah menunjukkan tangan kanan yang mewakili Petua Tangan Kanan Fleming.
X mewakili ...
The diagram shows a right hand which represents Fleming’s Right-Hand Rule.
X represents ...
Arus elektrik
Electric current
Daya
Force
Medan magnet
Magnetic field
Beza keupayaan
Potential difference
9
Multiple Choice
Rajah menunjukkan gerakan satu konduktor pembawa arus di antara dua magnet. Manakah akan menambah laju gerakan konduktor?
The diagram shows the movement of a current-carrying conductor between two magnets. Which of the following will increase the speed of movement of the conductor?
menggunakan konduktor yang lebih panjang
use longer conductor
menggunakan sel kering yang lebih banyak
use more dry cells
mengubah kekutuban magnet
change the polarity of the magnet
menambah jarak di antara dua magnet
increase the distance between the two magnets
10
Multiple Choice
Rajah menunjukkan sebuah transformer ringkas. Mentol itu tidak menyala. Langkah yang manakah akan menyalakan mentol itu?
Which step will cause the bulb to light up?
The diagram shows a simple transformer. The bulb does not light up.
Menambahkan bilangan lilitan bagi gegelung sekunder
Increase the number of turns of the secondary coil
Mengurangkan bilangan lilitan bagi gegelung primer
Decrease the number of turns of the primary coil
Menggantikan bateri 6 V dengan bateri 9 V
Replace the 6 V battery with a 9 V battery
Menggantikan bateri 6 V dengan bekalan arus ulang alik 6 V
Replace the 6 V battery with a 6 V alternating current supply
Rajah menunjukkan seutas dawai yang membawa arus di antara kutub-kutub sepasang magnet kekal. Apakah arah daya pada dawai itu?
The diagram shows a current-carrying wire between the poles of a pair of permanent magnets. What is the direction of the force on the wire?
A
B
C
D
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