Electrical Energy and Power

Electrical Energy and Power problem 19

An electric heater in a room is connected to a 220 V voltage source. The resistance wire of the heater has a resistance of .

  • How much electrical energy does the heater receive in one month (30 days) if it is connected for an average of 8 hours a day?

  • How much heat does it emit into the room?

  • What is the cost of the electrical energy received by the heater if 100 MJ of electrical energy costs 1.5 EUR?


material editor: Habeeb Adenle