Home
Class 12
PHYSICS
There are two wires of the same metal of...

There are two wires of the same metal of same area of cross section but having lengths in the ratio 2 : I. If same p.d. is applied across their ends, what will be the ratio of current in them?

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CAPACITANCE

    PHYSICS GALAXY - ASHISH ARORA|Exercise UNSOLVED NUMERICAL PROBLEMS|40 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT

    PHYSICS GALAXY - ASHISH ARORA|Exercise Advance MCQs|33 Videos

Similar Questions

Explore conceptually related problems

Two wires of the same material of same length have area of cross sections in the ratio 1:2 If forces are applied in the ratio 2:1 to extend them what be the ratio of their extension in length ?

Two wires A and B are of same metal, have the same area of cross-section and have their lengths in the ratio 2 : 1 . What will be the ratio of currents flowing through them respectively when the same potential difference is applied across the length of each of them ?

Two wires of same material and area of cross section but with lengths in the ratio 5:3 are strechted by the same force. The ratio of work done in two cases is

Two metallic wires of the same metal whose masses are 12g and 18g have lengths in the ratio 3:4 .Their resistances are in the ratio

Two wires of the same material have resistances in the ratio 16 : 81 and lengths in the ratio 1 : 4 . Compare their radii of cross-section.

The lengths of three conducting wires are in the ratio 1: 2 : 3. All the wires are of same metal and their radii are also equal. If we join them in parallel across a battery, what will be the ratio of current in them?

A uniform wire of length 4m and area of cross section but with lengths in the ratio 5:3 are strechted by the same force. The ratio of work done in two cases is

Two wires of the same material and having lengths in the ratio of 2:3 are connected in series.The p.d.s across the wires are 4.2V and 3.6V respectively. ratio of their radii.

Two wires have the same material and length, but their masses are in the ratio of 4:3 . If they are stretched by the same force, their elongations will be in the ratio of

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

PHYSICS GALAXY - ASHISH ARORA-CURRENT ELECTRICITY-All Questions
  1. A steady current is flowing in a cylindrical conductor. Is there any e...

    Text Solution

    |

  2. The thermal energy developed in a current-carrying resistor is given b...

    Text Solution

    |

  3. There are two wires of the same metal of same area of cross section bu...

    Text Solution

    |

  4. When a current passes through a resistor, its temperature increases. I...

    Text Solution

    |

  5. A proton beem is going from west. Is there an electric current ? If ye...

    Text Solution

    |

  6. If a constant potential difference is applied across a bulb, the curre...

    Text Solution

    |

  7. As temperature increases, the vicosity of liquids decrease considerabl...

    Text Solution

    |

  8. Does a conductor become charged when a current is passed through it?

    Text Solution

    |

  9. Is the formula V= IR true for non ohmic device also?

    Text Solution

    |

  10. A given piece of wire oflength I, cross sectional area and resistance ...

    Text Solution

    |

  11. In an electrolyte, the positive ions move from left to right and negat...

    Text Solution

    |

  12. When the resistance connected in series with a cell is halved, the cur...

    Text Solution

    |

  13. Lights of a car become dim when the starter is opereterd. Why?

    Text Solution

    |

  14. The drift speed is defined as v(d)=(Delta l//Delta t)where (Delta l)is...

    Text Solution

    |

  15. Is work dome by a battery always equal to the thermal energy develop i...

    Text Solution

    |

  16. a capacitor of capacitance C is connected to two voltmeter A and B. A ...

    Text Solution

    |

  17. In a RC circuit, the time required for the charge on a capacitor to bu...

    Text Solution

    |

  18. A capacitor is charged up to a potneital V(0) It is then connected to ...

    Text Solution

    |

  19. Through an electrolyte an electrical current is due to drift of

    Text Solution

    |

  20. An ammeter and a voltmeter are joined in sereis to a cell. Their readi...

    Text Solution

    |