Question

1.
2.
Name any four insulators.
Name the material used for making:
(a) filament of an electric bulb (b) heating element of an electric heater
Mama au four olactrical appliances in which the heating effect of current ​

Answer 1

Answer:

Four Insulators:

plastic, wood, air, wool, etc

Answer 2

Answer:

1.  Name any four insulators.

glass, air, plastic, rubber, wood etc.

2. Name the material used for making:

(a) filament of an electric bulb

Tungsten is used to make filament of bulbs .  

(b) heating element of an electric heater

It has high melting point due to which it can withstand the heat used to give out ligh