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प्रश्न
A fuse is a short piece of wire of high ______ and of material of low ______.
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उत्तर
A fuse is a short piece of wire of high resistance and of material of low melting point.
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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.
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.
Two fuse wire of same length are rated 5 A and 20 A. Which of the two is thicker?
Explain the meaning of the statement ‘the current rating of a fuse is 5 A’.
‘A fuse is rated 8 A’. can it be used with an electrical appliance of rating 5kW, 200V?
(i) Write one advantage of connecting electrical appliances in parallel combination.
(ii) What characteristics should a fuse wire have ?
(iii) Which wire in a power circuit is connected to the metallic body of the appliance ?
What is an ‘electric fuse’? State its two characteristics of electric fuse.
Identify the option that displays the correct wiring with correct colour code:
Two fuse wires are rated 5 A and 20 A. Which of the two is longer ?
