A lamp consumes 1000 J of electrical energy in 10 s. What is its power?
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
Power = Work/Time
P = W/T
Time = 10 s
Work done = Energy consumed by the lamp = 1000 J
Power = 1000/10 = 100 Js-1 =100 W
Hence, the power of the lamp is 100 W
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