Question

Q and A
i) Differentiate between single touch and double touch method of magnetization.
ii) State two ways in which magnets can lose their magnetism

Answer 1

Answer:

In single touch we use only <strong>one pole of one magnet and rub it across the surface of the substance in only one direction. rub them across the surface of the substance. We never slide both the magnets in the same direction in double touch method. Both magnets are slid in two different directions.

Explanation:

By decreasing the no coils and by decreasing the current in the electromagnet

Answer 2

Answer:

1 ans; the method of making an artificial method by rubbing a permanent magnet over it in the same direction is know as single touch

double touch method is a method of mangetizing a material by using two magnet instead of one

2ans: i.at around 80°C magnet can lose it magnetism

ii: magnet material lose magnetism as they heat