Question

1. prepare a list of objects in your home under three categories:

(i) objects which are electrical insulators only
(ii) objects which are electrical conductors only
(iii) objects which are made of both, whose some parts are insulators and some electrical conductors.

Explanation:

Step1: Identify electrical insulators

Materials like rubber, plastic, wood are insulators. Examples of objects at home could be rubber - soled shoes, plastic combs, wooden tables.

Step2: Identify electrical conductors

Metals are good conductors. Objects like copper wires, silver spoons, iron nails are conductors.

Step3: Identify objects with both

Electrical appliances often have both. For example, a toaster has a metal heating element (conductor) and a plastic or rubber - coated handle (insulator).

Answer:

(i) Rubber - soled shoes, plastic comb, wooden table
(ii) Copper wire, silver spoon, iron nail
(iii) Toaster, hairdryer, electric kettle