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CGP EDU Academic Team
Published on: August 13, 2026
Two coils require 20 minutes and 60 minutes respectively to produce same amount of heat energy when connected separately to the same source. If they are connected in parallel arrangement to the same source; the time required to produce same amount of heat by the combination of coils, will be min.
Text Solution
Verified by ExpertsThe correct answer is:
15
(15) 
(we know)
In 't' time, 
Given that, (for same source, 
same)
If they are connected in parallel then Req 
To produce same heat, using equation
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