PHY_10_55_V2_P_Ampere force. Lorentz force
Оценка 4.8

PHY_10_55_V2_P_Ampere force. Lorentz force

Оценка 4.8
ppt
08.05.2020
PHY_10_55_V2_P_Ampere force. Lorentz force
PHY_10_55_V2_P_Ampere force. Lorentz force.ppt

Lesson Objectives By the end of the lesson learners will be able: 10

Lesson Objectives By the end of the lesson learners will be able: 10

Lesson Objectives

By the end of the lesson learners will be able:
10.4.1.2 – to apply the left-hand rule and describe the effect of a magnetic field on moving charged particles and electrical conductor;

1

Ampere force and Lorentz force

Keywords English Russian Kazakh

Keywords English Russian Kazakh

Keywords

English

Russian

Kazakh

Magnetic flux

Magnetic flux density

Permeability

Fleming’s left hand rule

Conventional current

2

Professor Hans Christian Oersted

In 1820
‘’A compass needle moved when
it was close to a wire connected to a battery.’’

3 RIGHT HAND GRIP RULE:

3 RIGHT HAND GRIP RULE:

3

RIGHT HAND GRIP RULE:

4 current outwards current inwards B

4 current outwards current inwards B

4

current outwards

current inwards

B

I N turns In the middle At the end

I N turns In the middle At the end

5

I

N turns

In the middle

At the end

N S Interaction between a magnet and the field due to a current

N S Interaction between a magnet and the field due to a current

6

N

S

Interaction between a magnet and the field due to a current

7

7

7

8 FLEMING’S LEFT HAND MOTOR RULE

8 FLEMING’S LEFT HAND MOTOR RULE

8

FLEMING’S LEFT HAND MOTOR RULE

FLEMING’S LEFT HAND MOTOR RULE

FLEMING’S LEFT HAND MOTOR RULE

9

FLEMING’S LEFT HAND MOTOR RULE

FOREFINGER = FIELD

THUMB = MOTION

SECOND FINGER = CURRENT

Activity 10

Activity 10

Activity

10

Answers 11

Answers 11

Answers

11

F=B I LSinθ Where L = length of conductor in the field Θ is the angle between

F=B I LSinθ Where L = length of conductor in the field Θ is the angle between

12

F=B I LSinθ

Where L = length of conductor in the field
Θ is the angle between B and I

Like Currents Attracts Unlike Currents

Like Currents Attracts Unlike Currents

13

Like Currents Attracts Unlike Currents Repel

Force experienced by a charged particle (charge

Force experienced by a charged particle (charge

14

Force experienced by a charged particle (charge Q) moving with a velocity, v ,in a magnetic field of Flux density, B.

+

Q

Particle travels L metres from A to B in t seconds

F = B I L

F = BQv

B-Force on Charged Particles 15

B-Force on Charged Particles 15

B-Force on Charged Particles

15

F F THE FORCE IS ALWAYS PERPENDICULAR

F F THE FORCE IS ALWAYS PERPENDICULAR

16

+

F

F

THE FORCE IS ALWAYS PERPENDICULAR TO THE MOTION

THE PARTICLE MUST MOVE ALONG AN ARC OF A CIRCLE

+

Frequency of Rotation, f + The frequency ,f, is independent of the radius and the velocity

Frequency of Rotation, f + The frequency ,f, is independent of the radius and the velocity

17

Frequency of Rotation, f

+

The frequency ,f, is independent of the radius and the velocity

This is the principle of the CYCLOTRON

Particle Radius, r. 18

Particle Radius, r. 18

Particle Radius, r.

 

18

CYCLOTRON + High frequency square wave www

CYCLOTRON + High frequency square wave www

19

CYCLOTRON

+

High frequency square wave

www.youtube.com/watch?v=_T745HXduHY

20

20

20

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