Skip to main content
Workforce LibreTexts

3.E: Self-Test 3

  • Page ID
    3275
    • Chargers-Logo-CircleISO_F.png
    • Contributed by Camosun College
    • Sourced from BCCampus (Download for free at http://open.bccampus.ca/find-open-textbooks)

    Self-Test 3

    1. There are three types of magnets: natural, artificial, and electric.
      1. True
      2. False
    2. Natural magnets have the strongest force.
      1. True
      2. False
    3. If the south poles of two magnets are brought together, what they will do?
      1. Conduct
      2. Relate
      3. Saturate
      4. Repel
    4. Changing which of the following will also change the strength of an electromagnet?
      1. Direction of current flow
      2. Size of wires
      3. The length of the core
      4. Amount of current flow
    5. What is the core of an electromagnet usually made from?
      1. Air
      2. Soft iron
      3. Aluminum
      4. Copper
    6. What two elements must be combined with a conductor to generate a voltage?
      1. Magnetic field and a current
      2. Current and movement
      3. Coil and a magnet
      4. Magnetic field and movement
    7. Magnetic lines of force never cross.
      1. True
      2. False