Home
Class 12
PHYSICS
The resistance of a uniform metallic wir...

The resistance of a uniform metallic wire is `1 Omega`,its radius is 0.1 mm and resistivity of its material is `1.8 times 10^-6 Omega`.cm. Determine the length of the wire.

Text Solution

Verified by Experts

The correct Answer is:
174.4 cm
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    CHHAYA PUBLICATION|Exercise EXERCISE ( PROBLEM SET-II)|25 Videos

  • CURRENT ELECTRICITY

    CHHAYA PUBLICATION|Exercise EXERCISE ( HOT NUMERICAL PROBLEMS)|5 Videos

  • CURRENT ELECTRICITY

    CHHAYA PUBLICATION|Exercise EXERCISE ( SHORT ANSWER TYPE QUESTION-II)|7 Videos

  • COMMUNICATION STSTEM

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|28 Videos

  • DIFFRACTION AND POLARISATION OF LIGHT

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|27 Videos

Similar Questions

Explore conceptually related problems

Resistivity of copper is 1.76 times 10^-6 Omega .cm. Express it in ohm.m.

Resistance of a copper wire of cross sectional area 0.02 cm^(2) is 5 Omega . If the resistivity of copper be 1.72xx10^(-6) Omega - cm then find the length of the wire.

The length of a wire is 10 m and the diameter is 2 mm . If the resistivity of substance of the wire is 2 xx 10^(-6) ohm . Then the resistance of the wire is

The length,radius and resistivity of two wires are each in the ratio 1:3. The resistance of the comparatively thin wire is 20 Omega . Determine the resistance of the other wire.

The lengths radii and specific resistance of two conducting wires are each in the ratio of 1:3. If the resistance of the thinner wire is 10 Omega then the resistance of the other wire will be

The resistance of a wire is 5 Omega at 50^@C and 6 Omega at 100^@C . The resistance of the wire at 0^@C will be

A 1 m long metal wire has a cross sectional area of 0.1mm^2 . Find out the resistance of the wire if the resistivity of the metal is 1.8 times 10^-6 Omega.cm.

The resistivity of a wire if its length be doubled-

The resistance R of a conducting wire depends on its material , length l and area of cross section A. The resistivity of the material of the wire is rho=(RA)l the value of rho is for different materials .It is very low for conducting materials like metals,Besides, the resistance of a conductor also depends on its temperature. IF the resistance of a conductor is R_0 at 0^@C and R_1 at t^@C , then R_1=R_0(1+at) where a is called the temperature coefficient of resistance. The resistance increases with temperature for metallic conductors but decreases for graphite,a few metal alloys,and for semiconductors like silicon and germanium. The resistance of a metal wire increases by 10% when its temperature rises from 10^@C to 110^@C .The temperature coefficient of resistance of the metal is

CHHAYA PUBLICATION-CURRENT ELECTRICITY -EXERCISE ( PROBLEM SET-I)
  1. An electric kettle has a resistance of 160 Omega. What current will fl...

    Text Solution

    |

  2. IF a wire of length 1 m and diameter 1.5 mm, a potential difference of...

    Text Solution

    |

  3. The resistance of a uniform metallic wire is 1 Omega,its radius is 0.1...

    Text Solution

    |

  4. The lengths diameters and resistances of two wire are in the ratio of ...

    Text Solution

    |

  5. A wire of radius 5 mm is produced from a lump of copper. Another wire ...

    Text Solution

    |

  6. A metal wire has a resistances of 5 Omega . If its length is doubled b...

    Text Solution

    |

  7. A 1 m long metal wire has a cross sectional area of 0.1mm^2. Find out ...

    Text Solution

    |

  8. The lengths,resistances and resistivities of materials of two wires-ea...

    Text Solution

    |

  9. A nichrome wire of resisitivity 'rho' is stretched to make it 10% long...

    Text Solution

    |

  10. A wire with a resistances 5 Omega is drawn out so that its new length ...

    Text Solution

    |

  11. A wire of resistance 32 Omega is melted and drawn into a wire of half ...

    Text Solution

    |

  12. The resistance of a copper wire at 20^@C is 3 Omega and at 100^@ is 3....

    Text Solution

    |

  13. The temperature coefficient of resistance of copper is 42.5 times 10^-...

    Text Solution

    |

  14. A voltage of 30 V is applied across a carbon resistor with first,secon...

    Text Solution

    |

  15. The resistance of a platinum wire of platinum resistance thermometer a...

    Text Solution

    |

  16. A carbon resistor is marked in coloured bands in the sequence blue,gre...

    Text Solution

    |

  17. The sequence of bands market on a carbon resistor are yellow,red,orang...

    Text Solution

    |

  18. What percent will be the equivalent resistance of two resistances 2 Om...

    Text Solution

    |

  19. With two resistances 2 Omega and 3 Omega In parallel a third resistanc...

    Text Solution

    |

  20. Equivalent resistances of two resistors in their series and parallel c...

    Text Solution

    |