Title: Examine magnetic properties of a circuit or component.
Course: Electronics/Industrial Robotics Technology (17101-I) > Section: Working with DC Circuits

Examination should include

- defining
  - magnetic field
  - induced current polarity
  - lines of flux
  - left-hand rule
  - oersted, gilbert, maxwell, gauss, and Lenz units of magnetism

- using the left-hand rule to determine the direction of induced current for generators
- explaining principles of electromagnetism
- explaining principles and operation of the d'Arsonval meter movement
- using the right-hand rule to determine the direction of induced current for motors
- explaining magnetic operation of relay.

Process/Skill Questions:

- What effects would magnetic field reversal have on your life?
- What makes electromagnetic interference (EMI) a concern for technicians?
- Why is it important to understand the left-hand rule of current?