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An Electrical Appliance is Rated as 60 W – 150 V. (A) What Do You Understand by this Statement ? (B) How Much Current Will Flow Through the Appliance When in Use ? - ICSE Class 8 - Physics

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Question

An electrical appliance is rated as 60 W – 150 V.
(a) What do you understand by this statement ?
(b) How much current will flow through the appliance when in use ?

Solution

a) 60 W -150 V power rating of appliance means, “If appliance is put in circuit on 15 0 volt, it will consume 60 w electrical power i.e. electric energy consumed by it in 1 sec. is 60 J.
(b) P = VI
∴ Current will through the appliance

I= `P/V` = `(60w)/(150v)` = 0.4 A

  Is there an error in this question or solution?
Solution An Electrical Appliance is Rated as 60 W – 150 V. (A) What Do You Understand by this Statement ? (B) How Much Current Will Flow Through the Appliance When in Use ? Concept: Concept of Static Electricity.
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