an electric is releted 1500w.how much units of energy in kwh it use in 10hour?
Answers
Explanation:
An electric heater is rated 1500 W. How much energy does it use in 10 hours?
An electric heater is rated 1500 W. How much energy does it use in 10 hours?Energy consumed by an electric heater can be obtained with the help of the expression, P= W/T Where, Power rating of the heater, P= 1500 W = 1.5 kW Time for which the heater has operated, T= 10 h Work done = Energy consumed by the heater Therefore, energy consumed = Power — Time = 1.5 — 10 = 15 kWh Hence, the energy consumed by the heater in 10 h is 15 kWh.
Time for which the heater is used t=10 hours =10×3600 s =36000 s
Time for which the heater is used t=10 hours =10×3600 s =36000 sEnergy consumed by the heater E=P×t where P is the power of the heater
Time for which the heater is used t=10 hours =10×3600 s =36000 sEnergy consumed by the heater E=P×t where P is the power of the heater∴ E=( (∵1kWh=3.6×10 6 J)