Water Heat

Asked by baidshryans | 21st Feb, 2009, 10:49: PM

Expert Answer:

In both the cases the heat supplied by the electric kettle will be same. Also since the same kettle is used, the resistance(R) will be same in both the cases.

Let,  V1= 220 v , t1 = 5 min and V2 = 200 v, t2 = ?

using the formula below, the required time can be calculated.

(V12t1)/R = (V22 t2)/ R

Answered by  | 22nd Feb, 2009, 12:46: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.