What Should Be the Current Rating of a Fuse to Be Used with an Electric Appliance of Rating 1.5 Kw-220 V? How is the Fuse Connected with the Appliance? - Physics

Question

What should be the current rating of a fuse to be used with an electric appliance of rating 1.5 kW-220 V? How is the fuse connected with the appliance?

Numerical

Solution

Given, P = 1.5 kW= 1500 W, p.d. = 220 V

We know that,

P=VI

I = `"P"/"V" = 1500/220` = 6.8 A

Thus a fuse of rating 7A may be used with the appliance and it should be connected in the live wire before connectimg it to the appliance.

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Electric Current

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Q 13 Q 12 Q 14

Chapter 4: Current Electricity - Exercise 4.2 ii [Page 188]

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Frank Physics - Part 2 [English] Class 10 ICSE

Chapter 4 Current Electricity
Exercise 4.2 ii | Q 13 | Page 188

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