Home
Class 12
PHYSICS
A 5-A wire can withstand a maximum power...

A `5-A` wire can withstand a maximum power of `1W` in circuit. The resistance of the fuse wire is

A

5 ohm

B

0.04 ohm

C

0.2ohm

D

0.4ohm

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    ALLEN|Exercise EXERCISE (J-A)|6 Videos

  • GEOMETRICAL OPTICS

    ALLEN|Exercise subjective|14 Videos

Similar Questions

Explore conceptually related problems

A 6A fuse wire can withstand a maximum power of 18W in circuit . The resistance of the fuse wire is

A fuse wire be

A wire of resistance 1 Omega is elongated by 10%. The resistance of the elongated wire is

A 4 Omega wire is doubled on it. Calculate the new resistance of the wire.

A piece of copper wire has a resistance of 25 Omega at 10^(@)C . What is the maximum operating temperature, if the resistance of the wire is to be increased by 20 % ? (Assume alpha at 10^(@)C=0.0041// .^(@)C^(-1) ).

A 5Omega resistance wire is doubled on it. Calculate the new resistance of the wire.

ALLEN-CURRENT ELECTRICITY-All Questions
  1. The thermo emf E of a thermocouple is found to vary wit temperature T ...

    Text Solution

    |

  2. Maximum number bulbs of 60 W that can be used in a 220V supply line p...

    Text Solution

    |

  3. A 5-A wire can withstand a maximum power of 1W in circuit. The resista...

    Text Solution

    |

  4. The temperature of inversion of a thermocouple is 620^(@)C and the neu...

    Text Solution

    |

  5. For ensuring dissipation of same energy in all three resistors (R(1), ...

    Text Solution

    |

  6. Power dissipated across the 8 Omega in the circuit shown here is 2 W. ...

    Text Solution

    |

  7. The electrochemical equivalent of a substance is numerically equal to ...

    Text Solution

    |

  8. The total power dissipated in watts in the circuit shown here is

    Text Solution

    |

  9. A steady current of 1.5 A flows through a copper voltameter for 10 min...

    Text Solution

    |

  10. If the cold junction of thermocouple is kept at 0^(@)C and the hot jun...

    Text Solution

    |

  11. An electric kettle takes 4 A current at 220 V. How much time will it t...

    Text Solution

    |

  12. A thermoelectric refrigerator works on

    Text Solution

    |

  13. E.M.F. of a thermocouple is 25 mV//.^(@)C A galvanometer whose resist...

    Text Solution

    |

  14. At neutral temperature, the thermoelectric power ((dE)/(dT)) has the v...

    Text Solution

    |

  15. In producing chrlorine through electorlysis, 100 kW power at 125 V is ...

    Text Solution

    |

  16. The thermo e.m.f. E in volts of a certain thermocouple is found to var...

    Text Solution

    |

  17. A light bulb is rated 100W for a 220V supply. The resistance of the bu...

    Text Solution

    |

  18. The rate of increase of thermo-emf with temperature at the neutral tem...

    Text Solution

    |

  19. A thermocouple of negligible resistance produces an emf fo 40 mu V//^(...

    Text Solution

    |

  20. The cold junction of a thermocouple is at 0^(@)C. The thermo e.m.f. ep...

    Text Solution

    |