The motor effect Flashcards
Current produces…
movement
The wire has to carry…
an electric current
The wire is placed into a…
magnetic field
The magnetic field forms…
around the wire
The magnetic field around the wire…
interacts with the permanent magnetic field
This interaction causes the wire…
to experience a force
The size of the force on the wire can be increased by…
increasing the size of the current (more cells)
Increase strength of magnetic field (stronger magnets)
The direction of the force can be reversed by…
Reversing the direction of current flow (turn cell around)
Reversing direction of magnetic field (swap magnets around)
When will the wire not experience a force?
When it is parallel to the magnetic field
The direct current motor relies on the motor effect. How does it use it?
A current flows around a coil, forming a magnetic field around it
This magnetic field interacts with the permanent magnetic field
A force acts on both sides of the coil, rotating it
