1. Explain what is meant by a hairdryer with a power rating of 1.5 kW.

  2. A television with a power rating of 60 W transformed 600 J of energy. 

      For how many seconds was the television switched on?

  3. The electricity meter's reading last month was 02586 kWh. This month's reading is 03102 kWh.

      The electricity company charges 9 pence per kilowatt hour. What is the cost of the electrical 

      energy used?

  4. Complete the following table to find the cost of using the following electrical appliances. 

      The cost is 9 pence per kilowatt hour.