Electromagnetism Flashcards
1
Q
When is a magnetic field produced?
A
When a current flows through a conducting wire
2
Q
What type of wire is needed for a magnetic field to be produced?
A
conducting wire
3
Q
What depends on the current through the wire and the distance of the wire?
A
strength on magnetic field
4
Q
Shaping the wire to form a solenoid increases what created by the current?
A
strength of the magnet field
5
Q
What is the magnetic field like inside a solenoid?
A
strong and uniform
6
Q
Is the shape magnetic field around the solenoid similar to the shape of a bar magnet?
A
yes
7
Q
What increases the strength of the magnetic field of a solenoid?
A
adding a iron core
8
Q
An electromagnet is a what?
A
a solenoid with an iron core
