Question

Write the appropriate term in the blanks .

(a) The alloys called.......... and .............. are used for making industrial magnets.

(b) A magnetic field can pass through ............ and ............... .

(c) The intensity of a magnetic field is indicated by the lines of ................ .

(d) The real test of a magnet is .............. .

Answer 1

(a) The alloys called alnico and nipermag are used for making industrial magnets.

(b) A magnetic field can pass through cardboard and water.

(c) The intensity of a magnetic field is indicated by the lines of magnetic force passing perpendicularly through a unit area.

(d) The real test of a magnet is repulsion.