Magnets poles. Effect of magnet. Magnetic field. 10 класс

1.

CHAPTER 13.2
REVIEW LESSON
MAGNETS
POLES
EFFECT of MAGNET
MAGNETIC FIELD
TYPES OF MAGNETS
VECTOR
FORMULA OF MAGNITUDE
PHYSICS
4-term
Week 1
2019-2020
attracts
north
unlike pull
from N
natural
3D
µI
iron
south
like push
to S
artificial
6direction
2пr
1

2.

“БІЛІМ-Инновация”
Халықаралық қоғамдық қоры
CHAPTER
13.2
PHYSICS – 10th grade
The Magnetic Field of Circular Loop
4-term
Week 1
2019-2020
Textbook page 238

3.

CHAPTER 13.2
The Magnetic Field of Circular Loop
Terms:
PHYSICS
loop
initial
Imagine
wound (wind) around
consists of
centre
rectangular
4-term
Week 1
2019-2020
ілмек / петля
бастапқы/ начальный
Елестетіңіз / представьте
орау / обматывать
…-тан кұралады / состоит из
oртасы/ центр
тікбұрышты/ прямоугольный
3

4.

CHAPTER 13.2
The Magnetic Field of Circular Loop
Magnetic Field lines of Circular Loop Wire
(b)
if current –carrying wire is wound in the
form of a circular loop, the magnetic field
lines are formed at the centre and around
the wire as in the Figures a and b
PHYSICS
4-term
Week 1
2019-2020
4

5.

CHAPTER 13.2 Magnetic Field of Circular Loop
Magnitude of Magnetic Field of Circular Loop Wire
the current
the distance
the number of turns
PHYSICS
4-term
Week 1
2019-2020
5

6.

CHAPTER 13.2 Magnetic Field of Circular Loop
Magnitude of Magnetic Field of Circular Loop Wire
Formula:
PHYSICS
4-term
Week 1
2019-2020
µ0 =4п10-7
6

7.

CHAPTER 13.2 Magnetic Field of Circular Loop
Magnitude of Magnetic Field of Circular Loop Wire
for example
A circular loop of radius r, carries a current of 15 A.
The magnetic field at the centre is 5 x10-5 T.
What is the radius r, in meters?
PHYSICS
4-term
Week 1
2019-2020
7

8.

CHAPTER 13.2 Magnetic Field of Circular Loop
Magnitude of Magnetic Field of Circular Loop Wire
Formula:
µ0 =4п10-7
xN
Figure.
If the loop consists of N turns, as shown
in the Figure.
The Magnetic Field (B) at the centre of
the circular loop is N times stronger.
PHYSICS
4-term
Week 1
2019-2020
8

9.

CHAPTER 13.2 Magnetic Field of Circular Loop
Magnitude of Magnetic Field of Circular Loop Wire
for example
The magnetic field at the centre of a circular loop of
50 turns of wire carrying a current of 2 A is 6 x 10–4 T.
What is the radius of the loop? (Take п = 3)
PHYSICS
4-term
Week 1
2019-2020
9

10.

CHAPTER 13.2
The Magnetic Field of Circular Loop
Resources
• Physics Textbook p238
• Khan Academy
• Zambak
PHYSICS
4-term
Week 1
2019-2020
10