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5 pages, 23 questions, 8 questions with responses, 8 total responses,

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Electric Power and Household Electricity (Solved) Question .1. What do you understand by 1 kilowatt hour? Question .2. An electric bulb has a filament and gases filled at low pressure. (i) What is the material commonly used for the filament? (ii) Name the gases used for filling the bulb. Question .3. Name the colour of the three core cable along with their corresponding electrical connections to a socket Question .4. Which part of an electric appliance is earthed? Question .5. Define 1 watt and 1 kilowat Question .6. There are three pins in an electric plug top. Answer the following : (i) How would you identify the earth pin? (ii) In which of the three connecting wires should the electric switch be connected? (iii) Explain why a switch should not be touched with wet hands. Question .7. Give one example each of material suitable for making (i) fuse wire and (ii) heater elemen Question .8. Score off the incorrect and write correctly the following : In wiring a three pin plug, the brown sleeved wire is connected to the material/live pin and the green/ blue sleeved wire is connected to the metal body of the appliance. Question .9. You have just paid the electricity bill for your house (i) what was it that your family consumed, for which you had to pay? (ii) In what unit was it measured? Question .10. What are high tension wires? Give two characteristics of these wires. Question .11. Why is the filament of an electric iron or kettle put between mica sheets?

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