6.3 Electromagnetism Flashcards
1
Q
Define permanent magnet
A
object made from a magnetized material that creates its own persistent magnetic field
2
Q
Define electromagnet.
A
object that uses the field generated by a current carrying wire to create a large magnetic filed which can vary by amount of current supplied
3
Q
what is equation for number of electrons?
A
Q=ne
4
Q
What is magnetic flux linkage symbol? and units.
A
𝜙, weber
5
Q
Define magnetic flux linkage.
A
Magnetic flux linkage is a measure of the flux in the whole solenoid.
6
Q
Define faradays law.
A
EMF is proportional to the rate of change if magnetic flux linkage
7
Q
Define Lenzs law.
A
Induced MEF is generated in a direction that so it opposes the change that produced it
