An electric kettle boils some water in 16 min. Due to some defect, it becomes necessary to remove 10% turns of heating coil of the kettle. Now, how much time will it take to boil the same of water? |
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a) |
17.7 min |
b) |
14.4 min |
c) |
20.9 min |
d) |
13.7 min |

An electric kettle boils some water in 16 min. Due to some defect, it becomes necessary to remove 10% turns of heating coil of the kettle. Now, how much time will it take to boil the same of water? |
|||||||

a) |
17.7 min |
b) |
14.4 min |
c) |
20.9 min |
d) |
13.7 min |

1 Answer

127 votes

We know, Let, initial number of turns resistance of the coil Constant 14.4 min. |

127 votes

127