Question

An electric heater is rated 1500 W. How much energy does it use in 10 hours? ​

Answer 1

ᴀɴsᴡᴇʀ:

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=(1500) W ×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∴ E=(1500) W ×36000 s⟹E=5.4×10

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=(1500) W ×36000 s⟹E=5.4×10 7

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=(1500) W ×36000 s⟹E=5.4×10 7 J

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=(1500) W ×36000 s⟹E=5.4×10 7 JE=15 kWh (∵1kWh=3.6×10

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=(1500) W ×36000 s⟹E=5.4×10 7 JE=15 kWh (∵1kWh=3.6×10 6

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=(1500) W ×36000 s⟹E=5.4×10 7 JE=15 kWh (∵1kWh=3.6×10 6 J)

Answer 2

Answer:

Power= 1500w=1500/1000=1.5kw Time=10 hours Energy=power×time 1.5×10 =15kWh

Explanation:

I hope it will help you