# 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

# Electromagnet - Straight Wire and Coil

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 pictures above shows the magnetic field that produced by a single straight current-carrying wire?
P
Q
R
S

2. Which symbol in the figure shows that current is flowing into the screen?
P
Q
R
S

3. The direction of the magnetic field produced by a current-carrying conductor can be determined by.

I. Fleming's Left Hand Rule
II. Fleming's Right Hand Rule
III. Right Hand Grib Rule
IV. Maxwell's Screw Rule

III only
I only
I and III only
III and IV only

4. Which of the following diagrams shows the correct magnetic field pattern produced by the current in a straight wire?
P and R only
R and S only
Q, R and S only
Q and S only

5. Which of the picture in the diagram shows a correct method in finding the direction of the magnetic field produced by a straight wire?
P
Q
R
S

6. Which of the following statements are TRUE about the magnetic field generated by a straight current carrying conductor?

I. The magnetic field strength increase when the current increases.
II. The magnetic field strength increase when the distance from the conductor increases.
III. The direction of the field line depends on the direction of the current.
IV. The direction of the field can be determined by Maxwell's Screw Rule.

I, II and III only
I and III only
I, III and IV only
I, II, III and IV

7. The figure shows a compass placed above a conductor. When the switch is on, the pointer of the compass will point to the direction as in
P
Q
R
S

8. The figure shows a compass placed above a conductor. When the switch is on, the pointer of the compass will point to the direction as in
P
Q
R
S

9. Which of the following diagrams shows the correct magnetic field pattern produced by a current carrying coil?
P
Q
R
S

10. Which of the following diagrams shows the correct magnetic field pattern produced by current in 2 straight wires?
P
Q
R
S

11. Which of the following diagrams shows the correct magnetic field pattern produced by current in 2 straight wires?
P
Q
R
S