11
(a)
12
2400W
240V
Heating
element
Figure 11.1
(0
State t...
Physics, 14.12.2020 08:40 ahoney2233
11
(a)
12
2400W
240V
Heating
element
Figure 11.1
(0
State the power rating of the kettle in kilowatts.
(ii)
How many units of electric energy would the use in 4 hours when connected to a 240v mains?
(iii)the cost of electricity is 30n. how much does it cost
to use the kettle for four (4) hours?
(iv)
Calculate the current flowing through the element of the kettle
when in use.
(v)
Suggest the size of a fuse suitable for the plug of this electric kettle.
Answers: 2
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