Question

Fig 9.15 shows two ways (a) and (b) of connecting the three lamps A, B and C to a.c. supply of 220 V. Name the two arrangements. Which of them would you prefer in a household circuit? Give reason for your answer.

Answer 1

The two arrangements are (a) series arrangement, and (b) parallel arrangement.
In a household circuit we will prefer the second circuit i.e., (b).
In circuit (b) each appliance has same voltage of 220 V. Since all the appliances that we use have voltage rating of 220 V in our country, so each bulb works normally.