Three Fuses Available Are Rated at 2 A, 10 a and 13 A. Which Fuse Would You Chose for an Electric Wire Rated at 3 Kw, 250 V? Show How You Arrived at Your Answer. - Physics

प्रश्न

Three fuses available are rated at 2 A, 10 A and 13 A. Which fuse would you chose for an electric wire rated at 3 kW, 250 V? Show how you arrived at your answer.

संख्यात्मक

उत्तर

Given power P = 3k W = 3000 W, Voltage = 250 V

We know that, P =VI

`"I" = "P"/"V" = 3000/250 = 12 "A"`

Thus am aximum of 12 A current can pass through the electric wire

and a fuse of rating 13 A should be used with it

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Q 6 Q 5 Q 7

अध्याय 4: Current Electricity - Exercise 4 [पृष्ठ २१२]

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फ्रैंक Physics - Part 2 [English] Class 10 ICSE

अध्याय 4 Current Electricity
Exercise 4 | Q 6 | पृष्ठ २१२

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