Electromagentism and Motor Effect Flashcards
(6 cards)
1
Q
What are the 5 features of an electromagnet
A
-an iron core
-inside a solenoid (coil)
-carry’s current
-becomes magnetised
-a magnetic field is induced around it
2
Q
What’s a solenoid
A
A coil of wire
3
Q
Using the Right Hand Rule what does the thumb represent and show
A
Current and the direction it’s facing
4
Q
How do you increase strength of electromagnet
A
-increase current
-increase number of coils
-us iron core
(3C’s - current, core, coils)
5
Q
What’s the motor effect
A
-current carrying wire
-has a magnetic field around it
-when it is placed in a magnetic field (it moves as it goes through magnetic field at a 90 degree angle)
-at the right angle
-it experiences a force
6
Q
What is the Left Hand Rule used for
A
Motor effect
