Part 2: Transformers

In a few sentences, answer the following questions, based on what you learned in class. You may need to look some things up in a textbook or online.

3) What happens if you pass electric current through a coiled conductive wire? What if you add an iron core?

4) What effect can be observed if you bring a magnetic field near a coil of conductive wire?

5) How can you combine the above effects to use one coil to create a current in a second coil?

6) For each drawing, indicate direction of change of flux through the secondary coil, direction of induced magnetic field (in the secondary coil), and direction of induced current.