Give two reasons why different electrical appliances in a domestic circuit are connected in parallel.

(a) Which is the better way to connect lights and other electrical appliances in domestic wiring: series circuits or parallel circuits? Why? (b) Christmas tree lamps are usually wired in series. What happens if one lamp breaks? (c) An electrician has wired a house in such a way that if a lamp gets fused in one room of the house, all the lamps in other rooms of the house stop working. What is the defect in the wiring? (d) Draw a circuit diagram showing two electric lamps connected in parallel together with a cell and a switch that works both lamps. Mark an A on your diagram to show where an ammeter should be placed to measure the current.

When two electric bulbs of 40W and 60W are connected in parallel, then the:

Initially two capacitors are charged to different potential differences as shown in figure and then connected in parallel as shown. Which of the following is incorrect about this circuit?

Give one reason for not using series arrangement for domestic circuits.

Three incandescent bulbs of 100 W each are connected in series in an electric circuit. In another circuit, another set of three bulbs of the same wattage are connected in parallel to the same source. (a) Will the bulbs in the two circuits glow with the same brightness ? Justify your answer. (b) Now let one bulb in both circuits get fused. Will the rest of the bulbs continue to glow in each circuit ? Give reason. (a) In a household electric circuits, different appliances are connected in parallel to one another. Give two reasons for the same. (b) An electrican puts a fuse of rating 5 A in that part of domestic electrical circuit in which electrical heater of rating 1.5 kW, 220 V is operating. What iis likely to happen in this case and why ? What change, if any, needs to be made ?