1)  Two heaters of same resistance are used to heat the water
In which of the following cases will the water heat up faster ?
a) if heaters are connected in series
b)if heaters are connected in parallel 

Asked by tanishqa.rathod | 1st Sep, 2015, 09:40: PM

Expert Answer:

When heaters are connected in series, current through the circuit is one-fourth the current that flows when connected in parallel.
 
Hence, it will take 4 times the time to heat water when heaters are connected in parallel.
 
So, when heaters are connected in parallel, the water gets heated faster.

Answered by Romal Bhansali | 2nd Sep, 2015, 07:08: PM