Question

How do motors work? Where is the electromagnet in motors?

Answer 1

@AravindG @emma97 @inkyvoyd @iamgroot Helllppp

Answer 2

An electromagnet is the basis of an electric motor. You can understand how things work in the motor by imagining the following scenario. Say that you created a simple electromagnet by wrapping 100 loops of wire around a nail and connecting it to a battery. The nail would become a magnet and have a north and south pole while the battery is connected.

Answer 3

The key to an electric motor is to then go one step further so that, at the moment that this half-turn of motion completes, the field of the electromagnet flips. The flip causes the electromagnet to complete another half-turn of motion. You flip the magnetic field just by changing the direction of the electrons flowing in the wire (you do that by flipping the battery over). If the field of the electromagnet were flipped at precisely the right moment at the end of each half-turn of motion, the electric motor would spin freely.

Answer 4

copied off electronics.ehow.com or something like that, right?

Answer 5

Now say that you take your nail electromagnet, run an axle through the middle of it and suspend it in the middle of a horseshoe magnet as shown in the figure below. If you were to attach a battery to the electromagnet so that the north end of the nail appeared as shown, the basic law of magnetism tells you what would happen: The north end of the electromagnet would be repelled from the north end of the horseshoe magnet and attracted to the south end of the horseshoe magnet. The south end of the electromagnet would be repelled in a similar way. The nail would move about half a turn and then stop in the position shown.

Answer 6

Lol

Answer 7

Nope i had it saved in my file i asked that same question

Answer 8

so i jusr copied it

Answer 9

*Just

Answer 10

link to question?

Answer 11

I dont have a link its just saved in my files but i can look it up for you

Answer 12

when i copied that whole first paragraph it came from electronics.ehow.com- maybe the person who helped u copied from it

Answer 13

Yeah probably? But it helped me!

Answer 14

lol

Answer 15

Your good with math?

Answer 16

Yes.

Answer 17

If you can explain this to me I can help you with some math!

Answer 18

It will mean so much if you can help with my math homework im failing i need some work done and sure let me explain

Answer 19

Ok what level is it

Answer 20

Above like calc i dont think i can help you

Answer 21

Calculus is scary :O

Answer 22

Its 9th grade work

Answer 23

kk

Answer 24

Like this

Answer 25

How do you write the following expanded number in standard notation?
400,000,000 + 900,000 + 60,000 + 5,000 + 900 + 90 + 2

401,019,092
400,960,599
400,965,992
100,154,252

Answer 26

SO EASY!
400,965,992

Answer 27

OMG THANK YOU!!!!!!!

Answer 28

LOLZ

Answer 29

Im failing :// i need help so anything you need help with ill try helping

Answer 30

post ur questions here ill answer them and u can explain electromagnet stuff to me :D

Answer 31

Ok so this is for your question how a electromagnet works

Answer 32

How a electro motor works

Answer 33

How do you write the following standard number in expanded notation?
744.07

700 + 40 + 4 + 0.07
700 + 40 + 4 + 0.7
7,000 + 40 + 4 + 0.07
200 + 40 + 6 + 0.4

Answer 34

700+40+4+.07

Answer 35

How is this 9th grade stuff

Answer 36

Ok so

HOW DOES ELECTRICITY CREATE MAGNETISM?
Each electron is surrounded by a force called an electric field. When an electron moves, it creates a second field—a magnetic field. When electrons are made to flow in a current through a conductor, such as a piece of metal or a coil of wire, the conductor becomes a temporary magnet—an electromagnet.

Answer 37

and yeah it is lol and you mean 700+40+4+0.7 not .07

Answer 38

HOW DO ELECTRIC MOTORS WORK?
A current turns a conductor into an electromagnet. If the current is reversed, the electromagnetic poles will reverse, too. When the electromagnet is placed near a fixed magnet, the two sets of poles repel and attract each other. This produces a force that makes the conductor rotate (spin) at high speed. This turns a shaft, which then drives a machine.

Answer 39

Ok..... any more questions?

Answer 40

Yes please

Answer 41

How do you write the number 2.1 × 10^-3 in standard form?
0.021
0.00021
0.0021
0.000021

Answer 42

its times

Answer 43

0.0021

Answer 44

How do you write the standard number 34,980,000,000 in scientific notation?

Answer 45

3.498 × 10^10
3.498 × 10^8
3.498 × 10^12
34.98 × 10^10

Answer 46

3.498*10^10

Answer 47

How do you write the following expanded number in standard notation?
300 + 90 + 7 + 0.5 + 0.04

3,970.54
397.54
397.9
307.54

Answer 48

397.54

Answer 49

How do you write the following standard number in expanded notation?
10,080.3

100 + 80 + 0.3
1,000 + 8 + 0.03
10,000 + 80 + 0.3
100,000 + 80 + 0.3

Answer 50

10,000+.... that one

Answer 51

How do you write the standard number 0.00075 in scientific notation?
7.5 × 10^-5
7.5 × 10^-4
7.5 × 10^-6
7.5 × 10^-3

Answer 52

3 more questions thank you so much for helping!

Answer 53

-4

Answer 54

omg u have so many fans

Answer 55

How do you write the standard number 7,395,000 in scientific notation?
73.95 × 10^6
7.395 × 10^4
7.395 × 10^7
7.395 × 10^6

Answer 56

lol yeah i help people but i cant even help my self with math

Answer 57

7.395, 10^6

Answer 58

How do you write the following expanded number in standard notation?
10,000,000 + 900,000 + 5,000 + 90 + 5

10,905,095
10,905,195
1,905,095
10,905,950

Answer 59

10,905,095

Answer 60

How do you write the number 3.668×10^5 in standard form?
3,668
36,680,000
366,800
366,800,000

Answer 61

366800

Answer 62

How do you write the following standard number in expanded notation?
90,070.2

90,000 + 70 + 0.2
9,000 + 7 + 0.02
900,000 + 70 + 0.2
900 + 70 + 0.2

Answer 63

90.000+70+.2

Answer 64

How do you write the following expanded number in standard notation?
70,000,000 + 900,000 + 3,000 + 30 + 7

70,903,370
70,903,137
70,903,037
7,903,037

Answer 65

70,903,037

Answer 66

How do you write the number 3.478 × 10^5 in standard form?
3,478
34,780,000
347,800,000
347,800

Answer 67

347800

Answer 68

How do you write the number 4.44 × 10^10 in standard form?
44,400,000,000
4,440,000,000
44,400,000
4,440,000,000,000

Answer 69

44400000000

Answer 70

How do you write the following expanded number in standard notation?
400,000,000 + 300,000 + 20,000 + 7,000 + 400 + 50 + 6

400,320,745
400,327,546
400,327,456
400,394,056

Answer 71

400,327,456

Answer 72

How do you write the standard number 0.0024 in scientific notation?
24 × 10^-2
2.4 × 10^-3
2.4 × 10^-2
2.4 × 10^-4

Answer 73

2.4*10^-3

Answer 74

How do you write the standard number 1,466,000 in scientific notation?
14.66 × 10^5
1.466 × 10^6
1.466 × 10^7
1.466 × 10^5

Answer 75

1.466*10^6

Answer 76

How do you write the following expanded number in standard notation?
700 + 80 + 1 + 0.4 + 0.06

782
701.46
781.46
7,810.46

Answer 77

781.46

Answer 78

How do you write the following standard number in expanded notation?
695.04

600 + 9 + 5 + 0.04
600 + 90 + 5 + 0.4
6,000 + 90 + 5 + 0.04
600 + 90 + 5 + 0.04

Answer 79

600+90+5+.04

Answer 80

How do you write the standard number 1,159,000,000 in scientific notation?
1.159 × 10^10
1.159 × 10^11
1.159 × 10^12
1.159 × 10^9

Answer 81

10 to 9

Answer 82

How do you write the number 5.3 × 10^-3 in standard form?
0.000053
0.053
0.0053
0.00053

Answer 83

.0053

Answer 84

ow do you write the following expanded number in standard notation?
90,000,000 + 800,000 + 6,000 + 30 + 6

90,806,136
90,806,036
90,800,636
90,086,036

Answer 85

90,806,036

Answer 86

How do you write the following standard number in expanded notation?
30,010.5

30,000 + 10 + 0.5
300 + 10 + 0.5
300,000 + 10 + 0.5
3,000 + 1 + 0.05

Answer 87

Sorry was afk. 30,000+10+.5