Question

who will pay more electrical energy 500watt tv set in 30 min or 600 watt heater in 20 min

Answer 1

Energy used by 500watt TV set in 30min
W=500×30/60=250Wh

Energy used by 600watt heater in 20 min

W= 600×20/60=200 Wh

Thus ,a 500W TV set will pay more electricity in 30 min than a 600 W heater in 20 minutes

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