Q
In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains______________?
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A
A. Length of heating element should be decreased
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B
B. Length of heating element should be increased
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C
C. Length of heating element has no effect on heating if water
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D
D. None of the above
Correct Answer:
A. A. Length of heating element should be decreased
