Physical Science Question 4

posted by .

How can a permanent magnet be demagnetized?

A.Cut the magnet in half.
B.Heat the magnet up
C.Strike the magnet with a heavy blow
D.both b and c


You will find the answer if you read this:

http://my.execpc.com/~rhoadley/magcare.htm

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. electricity

    if a bar of copper is brought near a magnet, the copper bar will be?
  2. physics

    Magnet A has twice the magnetic field strength of magnet B and at a certain distance pulls on magnet B with a force of 75 N. With how much force, then, does magnet B pull on magnet A?
  3. physics

    A 5 kg magnet exerts a constant force of 3 N on a 0.25 kg magnet. What force will the smaller magnet exert on the larger magnet?
  4. physics

    A 5 kg magnet exerts a constant force of 3 N on a 0.25 kg magnet. What force will the smaller magnet exert on the larger magnet?
  5. magnetism

    How can a permanent magnet be demagnetized?
  6. Fourth grade science

    Students are conducting an investigation that tests the force of a magnet by using one magnet to repel a second magnet. Which tool would be needed to measure the distance the second magnet moves?
  7. physics

    A 5 kg magnet exerts a constant force of 3 N on a 0.25 kg magnet. What force will the smaller magnet exert on the larger magnet?
  8. Science

    A ferromagnetic material is A) always a magnet B) a magnet if it's domains are aligned C) a magnet if it's domains are not aligned D) never a magnet I'm pretty sure it's A....
  9. Physical Science

    A ferromagnetic material is A) always a magnet B) a magnet if it's domains are aligned C) a magnet if it's domains are not aligned D) never a magnet I think it is A....
  10. physics

    A typical magnitude of the external magnetic field in a cardiac catheter ablation procedure using remote magnetic navigation is B = 0.080 T. Suppose that the permanent magnet in the catheter used in the procedure is inside the left …

More Similar Questions