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An electric iron is rated at 220 V, 2 kW...

An electric iron is rated at 220 V, 2 kW.
Why is the fuse absolutely necessary in a power circuit?

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The fuse is absolutely necessary in a power circuit because if somehow the circuit is overloaded (i.e., the total power of appliances connected in the circuit exceeds the power limit of the circuit) an excessive current will flow in the circuit and the line wire or appliances may get damaged. The use of fuse in the circuit will safeguard the appliances from any such mishap.
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ICSE-QUESTION PAPER-2018 -SECTION-II
  1. Find the equivalent resistance between A and B.

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  2. State whether the resistivity of a wire changes with the change in the...

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  3. An electric iron is rated 220 V, 2 kW. If the iron is used for 3h da...

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  4. An electric iron is rated at 220 V, 2 kW. Why is the fuse absolutel...

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  5. Heat supplied to a solid changes it into liquid. What is this change i...

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  6. During the phase change does the average kinetic energy of the molecul...

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  7. What is the energy absorbed during the phase change called ?

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  8. State two differences between "Heat Capacity" and "Specific Heat Capac...

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  9. What is the relationship between heat capacity and specific heat capac...

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  10. The temperature of 170 g of water at 50^@C is lowered to 5^@C by addin...

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  11. The diagram shows a coil wound around a U shape soft iron bar AB. ...

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  12. The diagram shows a coil wound around a U shape soft iron bar AB. ...

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  13. The diagram shows a coil wound around a U shape soft iron bar AB. ...

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  14. The ore of Uranium found in nature contains ""(92)^(238)U and ""(92)^(...

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  15. The ore of Uranium found in nature contains ""(92)^(238)U and ""(92)^(...

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  16. The ore of uranium found in nature contains ""(92)U^(238)and""(92)U^(2...

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  17. Radiations given out from a source when subjected to an electric field...

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  18. Radiations given out from a source when subjected to an electric field...

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  19. Radiations given out from a source when subjected to an electric field...

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  20. Radiations given out from a source when subjected to an electric field...

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