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संबंधित प्रश्न
State the characteristics required in a material to be used as an effective fuse wire.
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.
What is a fuse?
A fuse is a short piece of wire of high ______ and of material of low ______.
A fuse wire is made of an alloy of ______ and ______. If the current in a circuit exceeds the current rating of the fuse wire, it ______.
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?
What is an ‘electric fuse’? State its two characteristics of electric fuse.
(a) Name the electrical appliance shown in the diagram below.
(b) Name the material of the wire used in this device.
(c) Name two important characteristics of this wire.
