Home
Class 10
PHYSICS
Two wires of the same material and same ...

Two wires of the same material and same length have radii 1 mm and 2 mm respectively. Compare :
their specific resistance.

Text Solution

AI Generated Solution

To solve the problem of comparing the specific resistance (or resistivity) of two wires made of the same material and having the same length but different radii, we can follow these steps: ### Step-by-Step Solution: 1. **Understand Specific Resistance**: Specific resistance (or resistivity) is a property of a material that quantifies how strongly it resists the flow of electric current. It is denoted by the symbol \( \rho \) (rho) and is measured in ohm-meters (Ω·m). 2. **Identify the Given Information**: ...
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    ICSE|Exercise EXERCISE-8(B)|15 Videos

  • CURRENT ELECTRICITY

    ICSE|Exercise EXERCISE-8(B) (MULTIPLE CHOICE TYPE)|3 Videos

  • CURRENT ELECTRICITY

    ICSE|Exercise EXERCISE-8(A) ( MULTIPLE CHOICE TYPE)|2 Videos

  • CALORIMETRY

    ICSE|Exercise EXERCISE-11(B) (NUMERICALS)|15 Videos

  • ELECTRO-MAGNETISM

    ICSE|Exercise EXERCISE-10 (C) NUMERICALS |1 Videos

Similar Questions

Explore conceptually related problems

Two wires of the same material and same length have radii 1 mm and 2 mm respectively. Compare : their resistances,

Two wires of the same material have length 6cm and 10cm and radii 0.5 mm and 1.5 mm respectively. They are connected in series across a battery of 16 V. The p.d. across the shorter wire is

Two copper wire of length l and 2l have radii, r and 2r respectively. What si the ratio of their specific resistance.?

Two vibrating strings of the same material but lengths L and 2L have radii 2r and r respectively. They are stretched under the same tension. Both the string vibrate in their fundamental nodes, the one of length L with freuqency v_(1) and the other with frequency v_(2) . the ratio v_(1)//v_(2) is given by

Two wires of the same material have lengths in the ratio 1:2 and their radii are in the ratio 1:sqrt(2) If they are stretched by applying equal forces, the increase in their lengths will be in the ratio

Two wires of the same material have lengths in the ratio 1:2 and their radii are in the ratio 1:sqrt(2) If they are stretched by applying equal forces, the increase in their lengths will be in the ratio

Two wires of the same materical having equal area of cross-section have L and 2L. Their respective resistances are in the ratio

Two heater wires, made of the same material and having the same length and the same radius, are first connected in series and then in parallel to a constant potential difference. If the rate of heat produced in the two cases are Hs and Hp respectively then (Hs)/(Hp) will be

Two wires of the same material and length are stretched by the same force. Their masses are in the ratio 3:2 . Their elongations are in the ratio

Two wires of the same material and length but diameter in the ratic 1: 2 are stretched by the same load. The ratio of elastic potential energy per unit volume for the two wires is

ICSE-CURRENT ELECTRICITY-EXERCISE-8(A)(NUMERICALS )
  1. In a conductor, 6.25 xx 10^(16) electrons flow from its end A to B in ...

    Text Solution

    |

  2. A current of 1.6 mA flows through a conductor. If charge on an electro...

    Text Solution

    |

  3. Find the potential difference required to flow a current of 200 mA in ...

    Text Solution

    |

  4. An electric bulb draws 1.2 A current at 6V. Find the resistance of the...

    Text Solution

    |

  5. A car bulb connected to a 12 volt battery draws 2 A current when glowi...

    Text Solution

    |

  6. Calculate the current flowing through a wire of resistance 5 Omega con...

    Text Solution

    |

  7. In an experiment of verification of Ohm's law, following observations ...

    Text Solution

    |

  8. In an experiment of verification of Ohm's law, following observations ...

    Text Solution

    |

  9. In an experiment of verification of Ohm's law, following observations ...

    Text Solution

    |

  10. Two wires of the same material and same length have radii 1 mm and 2 m...

    Text Solution

    |

  11. Two wires of the same material and same length have radii 1 mm and 2 m...

    Text Solution

    |

  12. A given wire of resistance 1 Omega is stretched to double its length....

    Text Solution

    |

  13. A wire of resistance 3 ohm and length 10 cm is stretched to length 30 ...

    Text Solution

    |

  14. A wire of resistance 9 ohm having length 30 cm is tripled on itself. W...

    Text Solution

    |

  15. What length of copper wire of specific resistance 1.7 xx 10^(-8) Ome...

    Text Solution

    |

  16. The filament of a bulb takes a current 100 mA when potential differenc...

    Text Solution

    |