An immersion heater is rated 418 W. It should heat a litre of water from 10 to 30 in nearly |
|||||||
a) |
44 s |
b) |
100 s |
c) |
200 s |
d) |
400 s |
An immersion heater is rated 418 W. It should heat a litre of water from 10 to 30 in nearly |
|||||||
a) |
44 s |
b) |
100 s |
c) |
200 s |
d) |
400 s |