Which of these are magnetic materials?
All of these
Nickel
Cobalt
Iron
As you learned in this video, Iron, Nickel, Cobalt and Steel are some magnetic materials.
Why does magnetic field increases the resistivity of all metals except iron , cobalt and nickel ?
Which of the following is not a magnetic material?(a) gold(b) nickel(c) iron(d) cobalt
Non - magnetic materials: Rubber, wood, plastic Magnetic materials: Steel, iron nails, cobalt.