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A heater takes 50 minute to boil a given...

A heater takes 50 minute to boil a given amount of water, its coil is broken in five equal parts. If one part is used, then how much time it will take to boil the same amount of water using the same source?

Text Solution

Verified by Experts

For heater `H=(V^(2))/(R)xx50`
for one part of coil `H=(V^(2))/(R//5)xxt`
By equation (1) and (2) `(V^(2))/(R)xx50=(V^(2))/(R//5)xxt` t=10 minute
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Knowledge Check

  • A coil takes 15 min to boil a certain amount of water, another coil takes 20 min for the same process. Time taken to boil the same amount of water when both coil are connected in series

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    B
    `8.6` min
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    D
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    C
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