Question

a positive ac perform
9. Match Column I with Column II
Column 1
(a) A magnetic device used for finding geographic directions
(b) A device which is essential in an electric bell
(c) A fuse used in expensive and sensitive elèctric devices
(d) An alloy used as a material of fuse wire
(e)A material used for making fllament of a bulb
(f) A material which does not allow the electric current to pass
(g)A material used for making electromagnets
Column II
(i) Cartridge fuse
(11) Wax
(lli) Magnetic needle
(iv) Tungsten
(v) Fusible alloy
(vi) Electromagnet
(vil) Soft Iron
Name & Sign/thumb impression of the Parent
Name & Sign of the Subject science
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Answer 1

Answer:

1. ka magnetic needle.

2.soft iron.....