Lesson: Electromagnetic Induction
In this lesson, we will learn how to describe the electric current induced in a wire that is placed in a changing magnetic field.
Sample Question Videos
Worksheet: 12 Questions • 3 Videos
The direction of the current induced in a conductor by a changing is such that the magnetic field created by the induced current the initial changing magnetic field.
If the magnet is moved through the loop at half the speed, what will the current in the loop be?
If the permanent magnet is changed for one that is twice as strong and moves through the loop at the original speed, what will the current in the loop be?
Which section of diagram (b) does position in diagram (a) correspond to?
Which position in diagram (a) does section in diagram (b) correspond to?