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FIZIK ELEKTROMAGNET

FIZIK ELEKTROMAGNET

Assessment

Presentation

Physics

11th Grade

Practice Problem

Hard

Created by

NORHAFIZAN Moe

Used 16+ times

FREE Resource

0 Slides • 10 Questions

1

Multiple Choice

Question image

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?

1

A

2

B

3

C

4

D

2

Multiple Choice

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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?

1

K

2

L

3

M

4

J

3

Multiple Choice

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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 ...

1

luas keratan rentas dawai bertambah

the cross-section area of the wire increases

2

magnet itu dilepaskan dari kedudukan yang lebih tinggi

the magnet is released from a higher position

3

kekutuban magnet bertambah

the polarity of the magnet increases

4

lilitan pada gegelung dijarakkan

the turns of the coil are set further apart

4

Multiple Choice

Question image

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?

1

terpesong dan kembali ke sifar

deflect and return to zero

2

terpesong dan kekal di situ

deflect and remain there

3

tidak terpesong

not deflect

5

Multiple Choice

Question image

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?

1

R-S

2

Q-R

3

P-Q

4

P-R

6

Multiple Choice

Mengapakah teras besi lembut digunakan dalam sebuah transformer?

Why is a soft iron core used in a transformer?

1

mengurangkan arus pusar

reduce the eddy current

2

mengurangkan kehilangan histeris

reduce the hystherisis loss

3

mengurangkan kebocoran fluks magnet

reduce magnetic flux leakage

7

Multiple Choice

Question image
1

A

2

B

3

C

4

D

8

Multiple Choice

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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 ...

1

Arus elektrik

Electric current

2

Daya

Force

3

Medan magnet

Magnetic field

4

Beza keupayaan

Potential difference

9

Multiple Choice

Question image

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?

1

menggunakan konduktor yang lebih panjang

use longer conductor

2

menggunakan sel kering yang lebih banyak

use more dry cells

3

mengubah kekutuban magnet

change the polarity of the magnet

4

menambah jarak di antara dua magnet

increase the distance between the two magnets

10

Multiple Choice

Question image

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.

1

Menambahkan bilangan lilitan bagi gegelung sekunder

Increase the number of turns of the secondary coil

2

Mengurangkan bilangan lilitan bagi gegelung primer

Decrease the number of turns of the primary coil

3

Menggantikan bateri 6 V dengan bateri 9 V

Replace the 6 V battery with a 9 V battery

4

Menggantikan bateri 6 V dengan bekalan arus ulang alik 6 V

Replace the 6 V battery with a 6 V alternating current supply

Question image

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?

1

A

2

B

3

C

4

D

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