Advertisements
Advertisements
प्रश्न
Why is it not advisable to use a piece of copper wire as fuse wire in an electric circuit?
Advertisements
उत्तर
Due to its high melting point (≈ 1080° C), copper wire is not suited for use as a fuse wire. In addition, regular copper wire is not suitable for use as a fuse because thicker wire is typically available and will not melt under normal conditions.
APPEARS IN
संबंधित प्रश्न
Name the factors on which the heat produced in a wire depends when current is passed in it, and state how does it depend on the factors stated by you.
A fuse is a short piece of wire of high ______ and of material of low ______.
How is a fuse put in an electric circuit?
Describe with the aid of a diagram some form of a fuse which is used in the electric lighting circuit of a house. Give two reasons why a fuse must not be replaced by an ordinary copper wire.
‘A fuse is rated 8 A’. can it be used with an electrical appliance of rating 5kW, 200V?
Why fuse wire must always be connected in ‘live’ wire? Explain.
What is the rating of fuse used in light and fan circuits?
Two fuse wires are rated 5 A and 20 A. Which of the two is longer ?
Name two safety devices which are connected to the live wire of a household electric circuit.
