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प्रश्न
‘A fuse is rated 8 A’. can it be used with an electrical appliance of rating 5kW, 200V?
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उत्तर
The safe limit of current which can flow through the electrical appliance is I = P/V = 5000/200
= 25 A; which is greater than 8 A. So, such fuse cannot be used.
संबंधित प्रश्न
Explain the meaning of the student 'current rating of a fuse is 5A'.
What is a fuse?
A fuse is a short piece of wire of high ______ and of material of low ______.
A fuse is connected in ______ with the ______ wire.
Explain the meaning of the statement ‘the current rating of a fuse is 5 A’.
(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 ?
Where are the cartridge type fuse used?
What is an ‘electric fuse’? State its two characteristics of electric fuse.
Explain the significance of kWh meter, main switch and main fuse in house-circuiting.
Name two safety devices which are connected to the live wire of a household electric circuit.
