Question

please answers this question fast guys physics class 7 ​

Answer 1

Answer:

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A1)attached..

A2) a geyser is used to heat water.for this reason, geyser need a high rate of electricity.

television is used to put pixel on the screen.for this reason,telivision need a low rate of electricity as compared to geyser.

so,according to the required rate of electricity,we have to use different fuses In a geyser and a telivision set.

A3) factors that affect the amount of heat produced in an element:

• electric current
• resistance to heating element
• time period to utilise the energy

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Answer 2

Answer:

Ok dear sister. Symbols are attached above according to question. Scroll right and tap the picture to view.

4. No, a geyser and a television set require different amount of current. Therefore, the fuse used in these will be of different ratings.

5. The factors affecting the amount of heat produced in an element are :

I) The material, length and thickness determines the heat production amount.

II) This effect is applied on lightening appliances like filament lamps, irons, kettles.

Really sorry for late and copy symbols from Google.

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