CBSE Class 10 Answered
sir can you explain this question
Two identical immersion heaters are to be used to heat water, in a large container. Which one of the following arrangement would heat the water faster :
(i) connecting the heaters in series with the main supply,
(ii) connecting the heaters in parallel with the main supply ? Give reasons for your answer.
Asked by seeni2005 | 05 May, 2016, 01:08: PM
Expert Answer
Resultant resistance in a series combination is greater than any individual resistance. Whereas the resultant resistance in a parallel combination is smaller than any individual resistance.
Since H R; so more the resistance more will be the heat. Therefore, the resistances must be connected in series to the main supply to obtain more heat per minute.
Answered by Yashvanti Jain | 05 May, 2016, 07:52: PM
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