Advertisements
Advertisements
प्रश्न
'A fuse is rated 8 A'. Can it be used with an electrical appliance of rating 5 kW, 200 V?
Advertisements
उत्तर
Rating of appliance 5 kW 200 V
∴ I = `5000/200`
= 25 A very high current
So A fuse rated 8A cannot be used.
APPEARS IN
संबंधित प्रश्न
To which wire should the fuse be connected?
Explain the meaning of the student 'current rating of a fuse is 5A'.
A fuse is connected in ______ with the ______ wire.
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.
Higher the current rating, _______ is the fuse wire.
How does the thickness of a fuse wire depend on its current rating?
(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.
How does the length of a fuse wire depend on its current rating?
Name two safety devices which are connected to the live wire of a household electric circuit.
