explain any one problem based on commercial unit of energy?

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Solution

$T h e c o m m e r c i a l u n i t o f E n e r g y i s k W h . I t i s t h e a m o u n t o f E n e r g y c o n s u m e d b y a n y e l e c t r i c a l g a d g e t i n a n h o u r . E x : A R a d i o s e t o f 60 w a t t s r u n s f o r 50 h o u r s t h e n a m o u n t o f E n e r g y c o n s u m e d E l e c t r i c a l e n e r g y = P \times t = 60 \times 10^{- 3} \times 50 E = 3 k W h$

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