Magnetism and Electromagnetism

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  • Created by: Ellie
  • Created on: 18-04-13 19:10
What sides attract?
opposites
1 of 10
Which direction do magnetic field always point in?
from north to south
2 of 10
Relate current to electromagnetism
The > the current the stronger the magnetic field
3 of 10
What does the First finger show in Flemings left hand rule?
Field
4 of 10
What does the thumb show in Flemings left hand rule?
Motion
5 of 10
What does the second finger show in Flemings left hand rule?
Current
6 of 10
State four factor which speed up a DC electric motor
More current, More turns on the coil, Stronger magnetic field and a soft ion
7 of 10
How does a loud speaker work?
AC electrical signals are sent from an amplifier to a coil where the magnets cause a force making the coil move. This makes the cone vibrate and create sound
8 of 10
What are the three ways to induce a current?
Move magnet, Move coil and change magnetic field
9 of 10
The size of the voltage in an electro magnet is increase if..
The field is stronger, the change is faster and the length of wire is increased
10 of 10

Other cards in this set

Card 2

Front

Which direction do magnetic field always point in?

Back

from north to south

Card 3

Front

Relate current to electromagnetism

Back

Preview of the front of card 3

Card 4

Front

What does the First finger show in Flemings left hand rule?

Back

Preview of the front of card 4

Card 5

Front

What does the thumb show in Flemings left hand rule?

Back

Preview of the front of card 5
View more cards

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danish111

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this is baby work im a big boy 

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