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