An electric pump is used to fill an overhead tank of capacity 9 |
|||||||
a) |
60 % |
b) |
40 % |
c) |
20 % |
d) |
30 % |
An electric pump is used to fill an overhead tank of capacity 9 |
|||||||
a) |
60 % |
b) |
40 % |
c) |
20 % |
d) |
30 % |
(d)
Work done in raising water=mgh
Or
Hence, efficiency=