An electric kettle marked "1500 W, 220 V" is to be used on the domestic supply line.
MATHEMATICS · Multi-part · A Level · Mathematics · Quantities and units in mechanics · Quantities and units in mechanics
Problem
An electric kettle marked "1500 W, 220 V" is to be used on the domestic supply line.
(i) Calculate the current drawn by the kettle when it is switched on.
(ii) Standard cartridge fuses available for household use are rated at 5 A, 10 A and 15 A. Identify the most suitable fuse rating for the kettle and justify your choice.
(iii) Explain briefly what would happen to the kettle and the fuse if a 5 A fuse were mistakenly fitted while the kettle is in use.