Physics
Grade-7
Easy
Question
What are the factors upon which the amount of heat produced in a wire depends?
(i) Material
(ii) Length
(iii) Thickness
- Only (i) and (ii)
- (i), (ii) and (iii)
- Only (ii) and (iii)
- Only (i) and (iii)
Hint:
(i), (ii) and (iii)
The correct answer is: (i), (ii) and (iii)
The amount of heat produced in a wire depends upon:
Material - better conductors produce less heat
length - as length increases heat produced increases
thickness - as thickness increases heat produced decreases
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