# Malaysia SPM Form 5 Physics - Electromagnetism

1.1 Introduction to Magnetism
1.2Straight Wire and Coil
1.3 Solenoid
1.4 Uses of Electromagnet
2.1 Catapult Force
2.2 Application of Catapult Force
3.1 Electromagnetic Induction
3.2 DC and AC Generator
4.1 Transformer
4.2 Transformer - Calculation
5.1 Generation and Transmission of electricity

# Uses of Electromagnet

The SPM Physics Workbook is developed under the One-School.net Free Books Project. The content of this book is strictly follow Malaysia SPM (Sijil Pelajaran Malaysia) syllabus. The aim of this project is to provide a complete electronic supplementary network for students to develop self-learning skills by breaking the spoon-feed rituals and to encourage them to compile educational information from the Internet.
1. Which of the following is not one of the uses of an electromagnet?
Telephone earpiece
Electromagnetic relay
Circuit Breaker
Microphone

2. Which of the following is TRUE regarding an electric bell?
It uses alternating current in its circuit
It uses electromagnet.
It uses both permanent magnet and electromagnet

3. Which of the design in the figure produces the strongest magnetic field if the current are equals in all cases? (The arrow shows the direction of the current.)
P
Q
R
S

4. A direct current passes through a conductor will produce
an electromagnetic wave.
an electric field
a magnetic field
a gravitational field

5. The figure shows a lifting magnet. A lifting magnet is

A permanent magnet
An electromagnet
A combination of a permanent magnet and an electromagnet.