Electromagentism Flashcards Preview

AGK - Electrics > Electromagentism > Flashcards

Flashcards in Electromagentism Deck (5)
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1

Lines of magnetic force can’t...

Cross

2

How can you distort lines of magnetic flux

Using a soft iron bar

3

Right hand corkscrew

If you put current through a conductor - will create a circular magnetic field in the direction of a right hand corkscrew

4

How can you incase the strength of an electromagnet

Increasing the current
Increasing the no of turns
Inserting a soft iron core

5

Relay

A small current activating an electromagnet - can be used to control a much larger current flowing through the relay

Allows you to operate high current using a small switch

Has a hinged arm and 1 set of contacts