Final answer:
To determine a suitable current rating of the fuse for the electric kettle, calculate the current in the kettle during normal operation by using the formula P = IV. The current drawn by the kettle in normal operation is approximately 10.87 amperes. Therefore, a suitable current rating of the fuse to put in the three-pin plug of the electric kettle would be 13A.
Step-by-step explanation:
To determine a suitable current rating of the fuse for the electric kettle, we need to calculate the current in the kettle during normal operation. We can use the formula P = IV, where P is the power rating (2.5 kW) and V is the voltage (230 V). Rearranging the formula, we get I = P/V. Substituting the values, we get I = 2.5 kW / 230 V = 10.87 A. This means that the current drawn by the kettle in normal operation is approximately 10.87 amperes.
Now, let's choose a suitable current rating of the fuse to put in the three-pin plug. The current rating of the fuse should be slightly higher than the current drawn by the kettle. In this case, we can choose the 13A fuse, which can handle a current of up to 13 amperes.
Therefore, a suitable current rating of the fuse to put in the three-pin plug of the electric kettle would be 13A.