Home
Class 10
PHYSICS
When a potential difference of 2 volt is...

When a potential difference of 2 volt is applied across the ends of a wire of 5 m length, a current of 1 A flows through it. Calculate :
the resistance of 2 m length of the wire,

Text Solution

AI Generated Solution

To solve the problem step by step, we will follow these calculations: ### Step 1: Calculate the resistance of the entire 5 m wire using Ohm's Law. Ohm's Law states that: \[ V = I \times R \] Where: - \( V \) is the potential difference (voltage) in volts, - \( I \) is the current in amperes, ...
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    ICSE|Exercise EXERCISE-8(A)|43 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

When a potential difference of 2 volt is applied across the ends of a wire of 5 m length, a current of 1 A flows through it. Calculate : the resistance per unit length of the wire,

When a potential difference of 2 volt is applied across the ends of a wire of 5 m length, a current of 1 A flows through it. Calculate : the resistance across the ends of the wire if it is doubled on itself.

When a potential difference is applied across, the current passing through

Calculate the potential difference across the ends of a wire of resistance 2 Omega' when a current of 1.5 A passes through it.

Calculate the potential difference required across a conductor of resistance 5 Omega to pass a current of 1.5 A through it.

If the potential difference across the ends of a conductor is doubled, the current flowing through it gets

The length of a potentiometer wire is 10m and a potential difference of 2 volt is applied to its ends. If the length of its wire is increased by 1m, the value of potential gradient in volt/m will be (potential difference across potentiometer wire remain same)

When 5 V potential difference is applied across a wire of length 0.1 m, the drift speed of electrons is 2.5 xx 10^(-4) ms ^(-1) . If the electron density in the wire is 8 xx 10^(28) m^(-3) , the resistivity of the material is close to :

A particular resistance wire has a resistance of 3.0 ohm per metre. Find : The potential difference of the battery which gives a current of 2-0 A in each of the 1.5 m length when connected in parallel to the battery (assume that the resistance of battery is negligible).

ICSE-CURRENT ELECTRICITY-EXERCISE-8(C) NUMERICALS
  1. When a potential difference of 2 volt is applied across the ends of a ...

    Text Solution

    |

  2. An electric bulb of resistance 500 ohm draws current 0.4 A from the so...

    Text Solution

    |

  3. An electric bulb of resistance 500Omega, draws a current of 0.4 A. Cal...

    Text Solution

    |

  4. A current of 2 A is passed through a coil of resistance 75 ohm for 2 m...

    Text Solution

    |

  5. A current of 2 A is passed through a coil of resistance 75 ohm for 2 m...

    Text Solution

    |

  6. Calculate the current through a 60 W lamp rated for 250 V. If the line...

    Text Solution

    |

  7. An electric bulb is rated '100 W, 250 V'. How much current will the bu...

    Text Solution

    |

  8. An electric bulb is rated "220 V, 100 W'. What is its resistance ?

    Text Solution

    |

  9. An electric bulb is rated "220 V, 100 W'. What safe current can be ...

    Text Solution

    |

  10. A bulb of power 40 W is used for 12.5 h each day for 30 days. Calculat...

    Text Solution

    |

  11. An electric press is rated 750 W, 230 V'. Calculate the electrical ene...

    Text Solution

    |

  12. An electrical appliance having a resistance of 200 Omega is operated ...

    Text Solution

    |

  13. An electrical appliance having a resistance of 200 Omega is operated ...

    Text Solution

    |

  14. A bulb rated 12 V, 24 W operates on a 12 volt battery for 20 minutes. ...

    Text Solution

    |

  15. A bulb rated 12 V, 24 W operates on a 12 volt battery for 20 minutes. ...

    Text Solution

    |

  16. A current of 0.2 A flows through a wire whose ends are at a potential ...

    Text Solution

    |

  17. A current of 0.2 A flows through a wire whose ends are at a potential ...

    Text Solution

    |

  18. What is the resistance, under normal working conditions, of an electri...

    Text Solution

    |

  19. Two bulbs are rated 60 W, 220 V' and '60 W, 110 V respectively. Calcul...

    Text Solution

    |

  20. An electric bulb is rated 250 W, 230 V'. Calculate: the energy con...

    Text Solution

    |

  21. An electric bulb is rated 250 W, 230 V'. Calculate: the time in wh...

    Text Solution

    |