ELECTRONIC

ELECTRONIC

12th Grade

7 Qs

quiz-placeholder

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ELECTRONIC

ELECTRONIC

Assessment

Quiz

Physics

12th Grade

Practice Problem

Medium

Created by

CHAN MEI LING KPM-Guru

Used 2+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Apakah yang dimaksudkan dengan emisi termion?

What is meant by thermionic emission?

Pembebasan elektron apabila dipanaskan.

Emission of electrons when heated.

Pergerakan ion dalam medan elektrik.

Movement of ions in electric field.

Pemancaran cahaya dari filamen.

Emission of light from filament.

Penyerapan elektron oleh logam.

Absorption of electrons by metal.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Apakah kesan medan magnet ke atas sinar katod?

What is the effect of a magnetic field on cathode rays?

Mempercepatkan sinar katod.

Speeds up cathode rays.

Membengkokkan laluan sinar katod.

Bends the path of cathode rays.

Menghentikan sinar katod.

Stops cathode rays.

Mengionkan udara.

Ionizes the air.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Halaju elektron apabila voltan 2000 V digunakan ialah:

The velocity of an electron when 2000 V is applied is:

1.0 × 106 ms−1

2.65 × 107 ms−1

5.93 × 107 ms−1

8.21 × 108 ms−1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fungsi utama diod semikonduktor dalam litar ialah:

The main function of a semiconductor diode in a circuit is to:

Menukar AC kepada DC.

Convert AC to DC.

Menyimpan cas.

Store charge.

Mengawal arus masuk.

Control input voltage.

Meningkatkan voltan.

Increase voltage.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Bagaimanakah kapasitor membantu dalam penuras voltan?

How does a capacitor help in voltage filtering?

Menstabilkan arus.

Stabilizes current.

Menyimpan dan membebaskan cas.

Stores and releases charge.

Mempercepatkan arus.

Speeds up current.

Menurunkan voltan.

Reduces voltage.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Transistor sebagai penguat arus bertindak dengan:

A transistor as a current amplifier functions by:

Menyimpan arus untuk dibebaskan.

Storing current for later use.

Mengubah arah arus.

Changing direction of current.

Menguatkan arus kecil pada asas ke pengumpul.

Amplifying small base current to collector.

Menstabilkan arus keluar.

Stabilizing output current.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Suis automatik menggunakan transistor berfungsi apabila:

An automatic switch using a transistor works when:

Voltan tinggi digunakan.

High voltage is applied.

Sinar katod dikenakan.

Cathode rays are applied.

Isyarat kecil diaktifkan di pangkalan transistor.

Small signal is activated at transistor base.

Litar disambung secara terus.

Circuit is directly connected.