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 coils are connected in series |
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a) |
5 min |
b) |
8.6 min |
c) |
35 min |
d) |
30 min |

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 coils are connected in series |
|||||||

a) |
5 min |
b) |
8.6 min |
c) |
35 min |
d) |
30 min |

1 Answer

127 votes

From Joule’s law, Where is potential difference, the time and the resistance. Let Or |

127 votes

127