Magnetic fields Flashcards
1
Q
What is a magnetic field
A
A region where a force is exerted on magnetic fields
2
Q
Describe the field/flux lines of a magnetic field
A
- North to South
- Closer together (ie at the poles) means a stronger field
3
Q
Explain how a current produces a magnetic field
A
When current flows through a wire or any other long straight conductor, at magnetic field is induced around the wire
4
Q
Describe the field lines of the induced magnetic field cause by a current carrying wire
A
concentric rings around the wire
use right hand rule to find the direction of the field
5
Q
A