Question

.(a) Explain the function of electric fuse.
(b) An electric bulb is marked 60W.what does this mean.How much energy does it consume if used for 1hour?

Answer 1

A)The function of a fuse is usually to prevent fire - that's the basic protection a fuse offers - between power supply and appliance there may be a few feet or metres of cable - if a short
circuit occurs in the appliance, the cable could easily become overheated (due to excess current) and burn or rupture its insulation

: If an electric bulb is marked as 60 W it does mean that it consumes 60 joule of energy per second.

Answer 2

electric fuse .
their function is control the electrical supply .
ii
60watt×60 minutes
3600kwh