Question

justify the following statement:
(i)Tungsten is used exclusively for filaments of electric lamps.

(ii)series arrangement is not used for domestic circuits.

(iii) copper and aluminum wire are usually employed for electricity transmission.​

Answer 1

Explanation:

(ii) Series connection is not used for domestic purposes because if one device get destroyed or stops working then all other devices stop working.

(iii) Copper and aluminum wire are good conductors of electricity, so they are for electric transmission.

Answer 2

Answer:

I) to prolong the life of the filaments

II) if one component fail other components will not work and each appliances don't get same voltage

II) because Cu and Al are low resistance