who will consume more electrical energy 600W tv set in 20 min ,500W heater in 20 min plz give step by step
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Electrical Energy = power x time
E = P x t
since time is same (20minutes)
E ∝ P
∴ E₁/E₂ = P₁/P₂ = 600/500 = 6/5= 1.2
∴ E₁ : E₂ = 6 : 5
∴ E₁ > E₂
∴ T V set consumes more electrical energy than heater.
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