What is the generator effect
when conductors and magnetic fields interact, a potential difference can be induced
What are the two ways to induce (create) a potential difference?
-Moving a wire through to a magnetic field.
-Changing the magnetic field around a wire
How can you increase the size of the induced potential difference?
Increase the speed of movement or increase the strength of the magnetic field.
How can you reverse the direction of any induced current
reverse the direction of the movement or the magnetic field
What does an induced current always do?
It creates a magnetic field that opposes the change that produced it.
This means that:
When a current is induced in a conductor, it produces its own magnetic field.
This induced magnetic field acts against the original change that caused the current.
Why does the induced magnetic field oppose the change?
To obey Lenz’s Law — it resists the movement or change in magnetic field.
