Question

Mention the commercial unit of energy. Express it in terms of joules. Calculate

the energy in joule consumed by a device of 60 W in one hour.​

Answer 1

Answer:

Answer: Commercial unit of Energy is Kilo Watt per hour denoted by kWh. 1kWh = 3600000 Joules Energy Consumed in 1 hour 60 W = 60 j/s 1 hour = 60×60 seconds ⇒ Energy consumed in 1 hour = 60 × 60 × 60 = 216000 j 216000 Joules of energy is consumed in 1 hour. Q.