Search Header Logo
Electromagnet

Electromagnet

Assessment

Presentation

Physics, Science

10th Grade

Medium

NGSS
HS-PS2-5, MS-PS2-3, HS-PS3-3

Standards-aligned

Created by

Edu Tools

Used 102+ times

FREE Resource

14 Slides • 14 Questions

1

Electromagnet

Slide image

2

Electromagnet

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil.



electric ------> magnet

Slide image

3

Electromagnet is a temporary magnet.

The temporary means the magnet field will appear, if a current flows through the coil.

Slide image

4

Multiple Choice

What is an electromagnet?
1
a temporary magnet made from current carrying wire around a magnetic metal core.
2
a permanent magnet with a north and south pole

5

Multiple Choice

Question image

How are electromagnets different from magnets?

1

magnets have a North and South pole

2

you can turn an electromagnet on/off

3

magnets are more powerful

6

Electromagnet components

Battery provides the energy or the power source to run the electromagnet.

The wire provides the pathway to carry electricity from component to component.

The magnetic material core becomes a temporary magnet when electricity is flowing through the circuit.

7

Multiple Choice

Which component provides the energy or the power source to run the electromagnet?

1

Iron nail

2

wire

3

Switch

4

Battery

8

Multiple Choice

Question image

What component provides the pathway to carry electricity from component to component?

1

battery

2

wire

3

switch

4

iron nail

9

Multiple Choice

Question image

What component becomes a temporary magnet when electricity is flowing through the circuit?

1

iron nail

2

copper wire

3

battery

4

switch

10

Electromagnet

The magnetic field will stronger if:

The electric current increase.

The number of turn of coil increase.


The magnetic field of electromagnet is also depend on the core.

If we put the iron (magnetic material) inside the core the electromagnet will stonger than we left the core with only the air.

Slide image

11

Multiple Choice

What would increase the strength of an electromagnet?
1
Increasing the amount of current flowing through the wire.
2
Inserting a wooden core inside the coil
3
Changing the direction of the current
4
Decreasing the number of coils of wire

12

Using the Right-Hand Rule 

The tumb will show North direction while the other fingers show current direction.

Slide image

13

Electric generator

 The electric generator is a device that converts mechanical energy into electrical energy.


magnet ---> electric

First phenomena founded by Micheal Faraday

Slide image

14

Multiple Choice

What is the device which converts mechanical energy to electrical energy?

1

electric generator

2

electric motor

15

Faraday experiment

https://micro.magnet.fsu.edu/electromag/java/faraday2/

Slide image

16

17

Multiple Choice

According to the experiment, if we move the the magnet faster the current will be___

1

The current will be greater

2

The current will be weaker

18

Multiple Choice

According to the experiment, if we replace the coil with greater number of turn, ____

1

The current will be greater

2

The current will be weaker

19

Electric generator

  • We can produce the electricity by rotating electric conductor between two magnets.

  • The electricity will greater if :

    • we replace the stronger magnet.
    • we rotate the conductor in faster rotation.


Slide image

20

Multiple Choice

Question image

What is the name of this device?

1

electric circuit

2

electric motor

3

generator

4

electromagnet

21

Application of Electric Generator

22

23

Multiple Choice

Question image
Huge wheels that rotate when pushed by water, wind or steam.
1
turbines
2
leads
3
magnets

24

Multiple Choice

Question image
Used at powerplants to produces elecrical energy for our homes.
1
generator
2
electric motor
3
electromagnet

25

Multiple Choice

Question image
Produces an electric current when a coil of wire wrapped around an iron core is rotated near a magnet.
1
generator
2
electric motor
3
electromagnet

26

Multiple Choice

AC generator converts:

1

Mechanical energy to electrical energy

2

Electrical energy to mechanical energy

3

Heat energy to mechanical energy

4

Chemical energy to electrical energy

27

Lets take inspire

28

Electromagnet

Slide image

Show answer

Auto Play

Slide 1 / 28

SLIDE