ICSE|Exercise TOPIC 2 Magnetism (4 Marks Questions )|6 Videos
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Distinguish between conductors and insulators of electricity. Give two examples of each.
Impure water is .................(a conductor/an insulator) of electricity
Low density polythene (LDP) is used in the insulation of electricity carrying wires and manufacture of flexible pipes and squeeze bottles because
Silver is an insulator of electricity.
State two differences between a conductor and an insulator of electricity.
A large insulated sphere of radius r charged with Q units of electricity is placed in contact with a small insulated uncharged sphere of radius r' and is then separated. The charge on the smaller sphere will now be.
Assertion :- (A) Graphite is good conductor of electricity however diamond belongs to the category of insulators . Rason (R ) Grapite is soft in anture on the hand diamond is very hard and brittle.
Assertion :- (A) Graphite is good conductor of electricity however diamond belongs to the category of insulators . Rason (R ) Grapite is soft in anture on the hand diamond is very hard and brittle.
The parts of electrical objects that need to let electricity pass through are always made of metal, whereas the plastic covering that surrounds wires is an electrical insulator. Give reason.
