An electric leaf blower has a power of 2100 W2100\text{ W}2100 W when operating at a voltage of 230 V230\text{ V}230 V.
State the equation linking power, current and voltage.
Show that the current in the leaf blower is about 9.1 A9.1\text{ A}9.1 A.
Which fuse rating would be suitable for the leaf blower?
The leaf blower uses mains electricity, which provides alternating current (a.c.).
Describe the difference between alternating current (a.c.) and direct current (d.c.).
State a source of direct current.
