Question

1)The alloys called .................. and ......................... are used for making industrial magnets.
2)A magnetic field can pass through ................... and ...................... .
3)The intensity of a magnetic field is indicated by the lines of .................... .
4)The real test of a magnet is .................. .
:- Fill Is The Blanks .

Answer 1

Answer:

Explanation:

1) Alnico alloys and Iron alloys

2)Cardboard and air

3)field(field lines)

4)Repulsion

Answer 2

Answer:

the ans is

Explanation:

alnico and nipermag